So, spent 3 hours going through the van with Destroked last Saturday. Scott over there was kind enough to loop in the guy that did the wiring harness so that was tremendously useful. He also plugged into the trans computer (factory GM) and we drove around troubleshooting the trans. The shifts are fine, what's harsh is the torque converter lock up. After some tinkering and a new adaptation, it's still firm but miles better than it was. Going to let the trans learn/adapt for a tank of fuel then revisit.
Anyway, grabbed a couple shots of the front of the engine bay. When I do an oil change in the near future I'll grab some of the view from the dog house. Everything is nice and accessible, and for the keen eye - they did head studs already as well.
The PO did hack up a little of the wiring on the driver side as you can see, including a very sketchy power distribution bolt. We are working on cleaning that up.