[dsraven]

Yeah, youre right about the dash thing. Wen i did mine i took the dash out. When it came time to install i had to narrow the dash some. On the envoy the headight switch was on the far left with a vent as well as a vent on the far right. Those will just get reconfigured when i get to putting it back together.
You may have to shorten the frame up along with removing the stock rad support when you get to that stage. The front frame horns will also be too long and tall for the stock bumper.
Pay attention to the foor height inside because to get the dash the right height to fit the windshield properly the cab will be seriosly low slung. If doing mine again i would do a body lift on the stock body mounts. That would also give more room over that crossmember ahead of the rear diff and also above the fuel tank bump.
Looks really good so far. Keep posting your progress.
Curious, where does your original firewall end up in relation to the saab firewall? Mine sits in the same place.