Welding body seams

I don't think I will try the lead process, as I'm not equiped to do it. On the filler, I like to let my cars sit in primer for a time, to allow the filler to shrink and cure. (especially out in the sun). I will not put any color on this car for maybe a year or so. I drove my Willys for 2 years before paint. A few things showed up in that time, which I was able to fix. I still have to do suspension, motor, wiring etc..., which will use up most of that time. (should have had my head examined for ording panels from JC Whitney).
Howard