Sorry for the delay in updates, got the rust fixed at the body shop, he only charged me 400 to fix the cab corner and the floor, and 200 to fix the windshield rust, I also had his glass guy change the rear seal.
Here are some pictures of the rust repairs...
Before:
After on the same side:
Cab corner before:
After: This is before bondo and primer.
Windshield rust before:
After: Before bondo and primer.
Overall I'm pretty pleased with the rust repair, the welding could be better, but can't complain for 600 bucks.