I'm almost at the stage in my XR2i project where i'll start replacing panels. I'll be replacing wings, sills, rear quarters, front panel and rear valance. I'm a welder by trade to i'm happy to do the work, however i'n inexperianced when it comes to welding cars.

Once i've stripped the panels off and tidyed up any rust i see, am i best getting it all properly painted (primer & topcoat) or will zinc galv spray do? (which i can get from work). another option i have is to use the stuff i'm using on the underside http://www.rust.co.uk/epoxy-mastic.cfm
I dont have a compressor so any painting will be from rattle cans or a tin.
As for the back of the panels i weld on. Is the black paint panels come in good enough to be left alone? I'm sure some of it will burn off near the welds, which i can use weld through primer on. Been told its not good stuff for coating panels with though due to poor adhesion.

Will be using Hadrian panels. Anyone had experiance with these? Been told they're a good fit. Will probably replace the rear quarters to half way up the B and C pillars. I'll butt weld where they join and flatten with a polishing disc.
Once i've finished welding and grinding back, can i use a 2 pack primer to protect the bare metal? I think it was cellulose primer/paint that a bodyshop told me years ago that wasn't good for painting over.

Finally, any other advice or tips you can offer me? I'm happy with doing the welding and know about progressive welding to prevent distorsion. I just need to remember to be a little more delicate than what welding/fabrication i do in work

thanks in advance

Dan