Yes, fuel pump and front end are 2 things to go bad on these trucks. Owner may have fixed these issues already, with the miles it has.
That rust spot looks exactly how my 01 looked. I cut mine out and replaced the outer panel around the wheel well. There will be much more rust in there than you think. I had to cut out and fab up a piece for the inner panel as well. You would want to dig into it, sooner than later.
These trucks are well worth the repairs, and that one looks to be in decent shape. I'll never get rid of my 01 for a newer truck. Electrical and emission bs of the newer ones... No thanks.