I believe I will have to move the trans crossmemer back but I believe I can use existing holes in the frame. It appears there are 3 sets of crossmember mount holes in the frame. I will confirm when I get it in but even if I have to drill that shouldn't be a big deal.

I have isolated starter/battery/oil/water/alt/ac but there are a lot more left that I'm afraid to cut because I don't know what they are. Like I said, most of the wires go between the two firewall plugs so I can't just trace them to an end.