Dave, if you're doing the placement of the upper control arms, then you're basically at Step One of designing your own IFS geometry. I know you are no newcomer to this and have a great deal of knowledge, but if you haven't designed the whole thing from scratch before, I'd advise at least reading Carroll Smith before you go any further. I read every suspension book I could get my hands on and nobody brought it together for me like Smith did. In my humble opinion, Tune To Win and Prepare To Win should be minimum required reading before tackling a project like yours.

Among other things, you must know how to set the instantaneous center, roll center, roll couple distribution, side scrub, camber gain, anti-dive, etc., etc. and Smith will lay it all out for you.