Unusable. This contains no VCAs whatsoever. No proper envelope gens, either. Lots of snarrrrrrrzy modules there...but none of the ones needed to make this work. Small builds require smaller modules, and this one's got only one (Manhattan's CP3 clone). And if you've gone to the trouble of cramming 4ms's STS in there, why isn't the final mixer stereo? Or at least, why no stereo output?
Two options, both beginning with scrapping this build and starting over...
1) Start with a larger cab. If you want to use these honkin' big modules, well, bigger = more hp needed. Plus, if you want to use these honkin' big modules (notice I keep dinging on that point where this smaller build is concerned), you will need more space (as in twice as much, most likely) for the necessary modules you've omitted as well as other modules that will make this much easier to use. Seriously. Try assembling something like your original in VCV Rack and see how UNsatisfying it is to use a synth with next to zero control capabilities.
2) Start with a larger cab (again...yes, there's a pattern there), but only somewhat larger. Then scrap ALL of these big modules and try and reduce your panel sizes to something that makes more sense in a smaller build.
Actually, your best bet is to do both. But before that, get a copy of VCV Rack and examine why all of these "boring" modules are actually 100% necessary, and then spend some time studying other experienced builders' MG rigs. From both exercises, you'll notice a pattern that emerges regarding necessary modules, module combinations, setup and signal flow, and so on. But at the very least, do not drop a pile of $$$ on the above build. I can guarantee that you'll be extremely disappointed if you do.