Sure thing Exigen! I am sure that our resident expert Lugia will chime in as well with his thoughts. Have you considered getting the Microbrute 2s package that has the Arturia Microbrute plus case/power supply? That would be great way to go and you can add a few modules slowly and see what works for you. Modular drums are EXPENSIVE!
The Phenol and other kits are nice and affordable before launch into a full 50k setup. My buddy has such a wall but it set him back a small fortune! Plus he has tons of other gear that he bought that he never uses now.