Ah...one more tweak, this time for the comparators. Jettison the Doepfers and use the Joranalogue Dual Window Comparator instead. Not only does this jam both comparators into the space one Doepfer uses, these are WINDOW comparators...which means they can trigger gates from several different comparator states (below, in window, not in window, above) instead of simply one via a combination of the comparators themselves and some logic onboard the module.
First modules here, I'd say: the entire tile row (may as well have that in place, since its your main utility set), uRinks, uMotion, Kinks, A-171-2s, Sisters and Stillson Hammer, just to get your basic synthesis functions in hand. Last in should be your drums and sampler players...because you may find things along the way that suggest to you that 1) you might not need them and 2) there are ideas emerging from your discoveries with the synthesis aspect that demand a shift in module implementations.