Thanks Dave, I appreciate the info. I've decided to get some body work done on the truck and that will give me 6 months to search for a used ls motor and 5 speed trans. Since I really want a 5 speed in the long term, and an auto trans wont be a completely simple install that I could undo easily, I'll just keep looking for a 5 speed.

I'll start a new post with my questions about the different 5 speed trans options. I'd love to go with the GM connect option, but it's way out of my budget.

Thanks for the suggestion about the fuel pump and fuel filter!