Dealing with some light frame rust and this pesky bumper cover piece

[bradleyheathhays]

Hey truck country. Just got my first pickup, 06 Chevy 1500 and can't say how glad I am to find a true grandpa truck, really worth maintaining. The first things I'm tackling are treating surface rust on the frame, and trading out the froofy white front upper bumper cover for a black one.

On the frame rust, what can I do that's not too expensive to treat the little rust it has? My budget's tight after putting out this cash, so I'm hoping there's something in a simple spray can (or 5) I can just coat it with and not have to worry for a while.

https://imgur.com/PLwelDC

https://imgur.com/138afSc



Second is this pesky bumper cover I'm trying to get on. It fits into place by pushing plastic retainer tabs through these holes and getting them to click into place. The new cover seems to line up with the existing bumper well enough, but I pushed so hard trying to get these things to click in I came this close to giving myself an aneurysm. Any advice for how a mere mortal can get these tabs to click in? Thanks ahead.

https://imgur.com/1ugWrxi

https://imgur.com/Sn8nWKp