Gentlemen thank you again for your input. I have decided on:

v2001-a (20 VPU)
(3) 1030c (-18 VPU)
(3) 1020c (-3 VPU)

So that leave me -1 VPU total. Will another power supply be necessary for the 1 VPU? Or can I get by without it?

Thank you again.
Kevin