give it a modular feel.
see what the guys are up to over at Tip Top Audio. Some of you have heard im sure.. but for the rest. here is 1of maybe 3 threads on the subject.
http://www.muffwiggler.com/forum/viewtopic.php?t=38280&postdays=0&postorder=asc&start=60
8 voices.
pcb for the vco module is already off to prototyping
not sure what it would cost in comparison to other options. DSI can do 10 voices right? tetra and prophet? little phatty and how many slims hahah