Thanks for the pix GreenMtns...what I envision is a setup at the rear Identical to yours except for the fact they would all be independent remotes.
In talking to one of my friends...the first thing he asked was if the factory valve bank for the loader & 3rd SCV was a modular/stack type...then a person could just add 2 additional solenoid spools and have remotes with relatively little plumbing work....heck you probably could modify and use the factory hard lines for the diverter to keep things clean back there....again...not a cheap option, but one that would be almost factory...
Trust me, as I research this project more, I will keep everybody up to date...I'll also probably need advice & fresh ideas!
The game plan right now to get the extra "fake" remote(s) is to get one of the Surplus Center Diverters and mount that to the top of my iMatch hitch..quick, dirty and cheap...but that doesnt mean I'm not researching the real SCV's....