Looks like a pretty decent truck to start with. If I can take this truck...

And turn it into this...

With just lots of sanding, a little bondo, some spot putty and using Rustoleum rattle can primer and spray paint, then you should be able to as well. I didn't sand it all to bare metal, just the rust spots, but it took lots of time to fill those spots back in. It probably would have been less time consuming to just take it all down to bare metal. I didn't put that much thought into it though until after I started it. It isn't a pro done perfect job, and I have put tons of hours into it, but it still looks way better than what I started with! The truck sat in a barn for 7 years and the birds did a number on it. I have had it for 7 years and haven't really worked on it in about 3 years. I just have to finish color sanding and polishing and do some touch up painting. If I ever get back to it there surely will be pics to come. I originally was only going to primer it or use flat black. Then I decided to paint it too while everything was torn apart. Then I figured I might as well start color sanding to make it look even better. Probably anything you do will improve what you have. Good luck with the truck and welcome to the site!