Hi, I'm very interested in (semi-)modular synths and decided to start my journey with the affordable Behringer Neutron. I've been playing with it for a couple of months by sending midi sequences from a DAW, but I'll be getting a Keystep today. I'd like to create a rack that will accompany the Neutron soon and in the future add another VCO or two and some sampler. After some research i came up with the rack shown below. It would be great if someone can give me their opinion on the rack and suggest what i could replace/add/remove.
ModularGrid Rack