Yeah, your interior looks real nice with the LED's. It makes it look so much brighter. IF I were to change any of the bulbs it would be the map and dome lights for extra visibility.
I also went to this site
http://www.safercar.gov/ to check for recalls on my car and it brought up the same things you mentioned(fuel filler rust, suspension rust) However, there was also a recall for headlight assemblies that didn't have amber in them, they say it was some kind of safety issue not have amber corners . I don't live in an area where they salt the roads so I should be ok.
With all this work I've done on the car the last year I'd like to keep this thing. I'm one of those people that gets tired of cars real easy. I always do the same thing, buy a used car and perform as much preventative maintenance as I possibly can and by that time I get tired of it and sell it. It's such a waste to put all that work in and have it go to another owner who may do the same thing and throw away good parts. I'm hoping I keep this truck for awhile.