If you are not short on money, powder coat is great. However, nobody sees the frame well enough to get a bang for your buck. Also if you chip it you can't "fix" it very easily. It also closes up the hole diameters a bit. You want to "learn" powder coating, that's fine. You can't do a frame, a hobby kit ain't good enough, big enough and you don't have a huge oven that goes to 400F. Fill and smooth the frame with fiberglass embedded filler, sand nice and paint. That way you will learn filling, sanding, smoothing and painting. I don't know your age or experience but if you are new to restoration, leading and powder coating would be for your future possibly. It is hard enough to restore a truck as it is. There are many, many disciplines to learn especially on a restomod project. Fabrication, body work, welding, smoothing, painting, engine, trans, linkage, plumbing, wiring, brakes, fuel systems, rust removal, parts locating and repair, upholstery, carpeting, window and other weatherstrip install, steering system and so on. If you are a pro already and want to learn a new thing, buy a PC kit and do some small stuff. Get a Lead kit and go for it. Lead melts at about 500F, which is higher than the PC. Lead is different now than back when. It's called body solder and is 30% Tin/ 70% lead alloy. much safer to breath. Contact a PC Company to see if it is sufficiently "conductive". My opinion on body solder is that the fillers available are very adequate and long lasting if prept right and a good quality brand is used. No need for lead except if you have run out of stuff to do and want to create more headaches, can't imagine that!
