No. The more plans, the merrier. I've already got one PEK listed on Craigslist to finance a P12 Keyboard. When the Rev2 has reached maturity - hopefully in May or June - then I'll begin selling the Prophet '08(s) to finance the Rev2(s). If all goes well, the end of it all should leave me with a PEK-PER pair, a P12 Keyboard-Module pair, a Rev2 Keyboard-Module pair, and a second Rev2 Keyboard. I may keep one P'08 Module to use for bass, instead of the Evolver Desktop. It's all just a matter of time.
This shouldn't affect my overall sound too much, but only broaden it a bit and increase the polyphony - both happy improvements.