I thought I'd update you guys some more...
After our trip to Vegas we were redoing an El Camino for a friend/customer. So, the Blazer has been on the back burner.. However, we started in on replacing the wing window seals as well as fixing the window sweeps as they kept coming loose from the door panel. Ended up riveting them on to the panel.
We also ordered a Vintage Air Gen IV evaporator kit to replace the factory parts. If we truly want to use this truck, the A/C needs some major improvements!