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Well, here's where the "you need a bigger case" conversation starts. Haha
As you know, you are indeed limiting yourself from the start. Many of the tiny palette style cases are shallow, and so you are limiting the number of modules you can choose from. Once you factor in all of the ribbon power cables and flying bus cable, you very well may find that some of your modules won't fit (or won't fit where you want to place them). Also, limiting is the rack-wart power supply eating up valuable rack space... so, the choice is yours.
I know the aesthetics of the Moog case are tempting. An alternate consideration would be the 104hp Make Noise powered skiff. The power supply is built-in and plenty powerful, it's deeper (but not super deep), and you have a broader range of modules that you can choose from, depth- and hp-wise. Something to consider, anyway.
You are stepping into a world that offers a mind-boggling potential for sound sculpting, so I recommend taking advantage of that without placing any unnecessary limitations on yourself from the outset.
Have fun!