You can maybe get by with something like this: https://www.sweetwater.com/store/detail/ElkMIDI-MnTRS--elektron-ca-3-3.5mm-to-5-pin-din-midi-adaptor-pair?
Or
https://www.sweetwater.com/store/detail/BMIDI535--boss-5ft-1.5m-midi-to-3.5mm-trs-cable
As really you just need to get from 5pin format to 3.5mm format. I’m not sure this specific cord will work for you but I imagine this or a similar one could fit the bill? It’s about a $10-20 solution. Those are included free with a bunch of my modules. The TRS end needs looking at and considering if your Eurorack modules would accept that signal/format.
My guess is most midi to CV modules would be overkill for your purpose.
Do keep PNW in mind as it’s a great module on its own AND you can feed it Clock in from another source then use it to manipulate and distribute clock etc to the rest of your eurorack setup, in case you need an actual module to take the clock in. I would be surprised if you can’t drive PNW off your Tascam with one of those 5pin to TRS cords
And BTW all the Ladik stuff is sold straight from them to my knowledge. If you haven’t already, you’ll have to check his website for stock.