Bought a 65 GMC c10 need help on few things such as primer/filler

[GMC1965]

Bought a 1965 GMC c10. It needs a few things cosmeticly. Floors have holes, needs HUGE patch on left front fender and needs a few extra things. So for my first question. I need help on restoring the box. I am going to remove and fix up any thing that needs to be welded. After that I will mebe if I should fill dings in box with a body filler. Then prime? I think. I will paint it in a year or so. So the primer with just keep it from rusting further and make it look half finished. I live in canada so paint companys may differ. I need some names of fillers/primers. The truck will not be a jackson action truck as I dont have that money. But I will get it painted ( coler and clear) done right. I need help on what to start with and what products are decent and are not super expensive.

I bought the truck two days ago and am going to pick it up tomorrow morning. I will have pics then. I drove it around a feild. It has a freshly rebuilt 292 and it runs pretty good. Needs exhaust and a gasket in the transmition as it leaks a little. I will be driving it 15-20km home. Frame is fantastic. Wood in box is almost not even there. I need a few heater parts I thing Il get some pics of that to.

Basicly im looking to prepare it for paint and keep it from rusting further.


Thanks!