If you can, definitely get a bigger case and more utilities. Mantis case is affordable and would be an improvement over the tiny case pictured. You need VCAs, mults, attenuators, mixer, envelopes, switch and tools for modular more than you'd think. I highly recommend the combo of Mutable Instruments Links and Kinks. Perhaps add a Maths as well? Here is my recommendation

ModularGrid Rack
-- sacguy71

Thank you SO much for this. Really helped to get some direct pointers on what I need as far as utility. I saw a YouTube vid of a guy talking about how he felt like it was impossible to avoid getting a Maths in the process of building his first rack and I'm feeling the same about now hahah.