How to temporarily stop rust...

[kcackler]

I've got some major rust issues going on in the passenger side of my 77 cab. The outer floorboard, rocker panel, and the seat mount (The big bump...not sure what it's called) all have rust tearing them apart. The problem is that I don't have the funds right now to get it fixed right, since I'm guessing it will be $1,000+ to hire someone to weld patches in. Is there anything I can do to temporarily stop the rust from spreading any further? Like dumping a gallon of POR-15 on it or something?

I would like to have it welded (Assuming the rust isn't so bad that it can't be welded) but right now the finances just don't allow for that.

Any tips would be appreciated. I've got to continue using the truck daily, so I need to fix it somehow.

Also - Where can I buy the bushings for my door strikers? Autozone here only has Ford ones and they said they couldn't order them either. Can't find them online anywhere either...

Thanks.