Hi Andrés,
Well let me start to remind you of the reply and advice that Lugia already provided here, so please keep that in mind. Then I am sorry to let you know that I have barely any experience with a DAW and no experience at all with MAX, so I can't help you much about these two.
Naturally I can (and I will, a bit further down here) help you with having a look at your rack. On the other hand... most likely I am the worst person to ask since I like to have for my own rack setup lots of space for future module extensions. So for me a rack never can be big enough, it only can be too small ;-)
Okay let's put those above-mentioned things here aside and have a look at your suggested above module setup, not keeping in mind a DAW or MAX usage, just a "simple" and plain modular setup. From that point of view, I will here below provide my feedback. Please note that might be here and there quite critical, that's not meant in anyway bad way, you just pick out the best parts for yourself and you take it from there.
I do see you have a Plaits, that's a great module, I have that one myself and I use it quite often. I would like to suggest you however to look into at least another voice to provide enough variety. So get another VCO. There are tons of modules available for that purpose, if you want to take it easy consider a Make Noise - STO module, great small module that provides a good sound and some patching possibilities.
Is that just me or can't I find any filters at all in your rack? A rack without a filter is... boring? ;-) You need to consider at least two filters to give it some variety. One filter can be a multimode filter the other filter entirely up to you what you prefer or like to do with it. I, myself, like crazy filters, a Doepfer A-124 Wasp filter is great for going bananas and the little milder yet still great filter A-106 SEM filter are good ones or perhaps I should say: they are my favourites :-) If you want something else yet interesting an Erica Synths - Black Dual VCF is a great stereo filter. Different then the Doepfer yet a big feast to use it! There are so many filters, in a way it is better to have any filter than not having a filter at all ;-)
I do notice you have planned two drum/percussion related modules being the Akemie's Taiko and the Intellijel Plonk modules, I don't have them myself but I do believe these are good modules, however to start with modular and already look into percussion & drum stuff while not even have covered the basics, mwah... If you have a good percussion/drum solution outside your modular, then stick with that first, get experience with a simple modular setup first. Once you are comfortable with that you could then start to look into which parts of drums and percussion you want to consider to take that into modular... If you want to have drums/percussion fully done by modular, yes that's of course possible but that doesn't go cheap neither that goes low in HP space I am afraid.
I noticed you planned Quadrax as your LFO and Quad VCA as your VCA, fair enough I guess. Keep in mind that it's nice to have a second or even a third LFO. The same goes for VCAs, the famous slogan here on this forum is: "You never can have enough VCAs" and that's not too much off from the truth, so you could consider a second VCA. I am crazy about the Waldorf DVCA1, the best VCA module in the world, at least to me that is (and for the moment, haven't discovered yet a better one) however I can imagine it's not everybody's cup of tea since it's a large module, however it's a great dual VCA. Waldorf stopped producing modules so if you are interested you should hurry and get one before it's everywhere sold out. Otherwise consider a Xoac Devices Tallin dual VCA, much smaller module, yet still a good dual VCA. There are tons of VCAs, many of them are good.
Mimeophon is definitely a great module, it's on my wish list too however it's a bit large for a rather small rack, so you might want to reconsider this, up to you. Yes, it's good to have at least one or two effects in your modular setup, so from that point of view it's good and you can keep it in your rack --> hence, again, consider a larger rack ;-)
Are you going to use your DAW only or are you going to use an external mixer as well? In case you are going to use an external mixer, you might want to consider the Expert Sleepers - ES-9 instead, I know that one is bloody expensive but it provides you an audio output towards your external mixer. Other options for audio interfaces are Intellijel - Audio I/O, Befaco Out v3, Bastl Instruments - Ciao! and many others. If you like XLR inputs & outputs then consider ACL - Audio Interface or Vermona - Tai-4.
I might have overlooked it but I think I didn't see any envelopes (EGs), so get at least one, better to have at least two. If you want to get started with a simple one consider a Doepfer A-140, great ADSR for not too much money.
I haven't even started about utility modules but start to look into the above. Seriously consider a larger rack and reconsider certain choices of your modules. Good luck with the planning, check all type of modules, the more you investigate, read and check the more things might get clearer or not because there is a lot to check ;-) Once you have updated your rack, let us know then let's have a look again. Kind regards, Garfield.
