DIY quarter skins

Well,here goes.....
1.only replace as much of the panel as you need to.
2.scrape under coating around edges of area to be repaired
3.take pictures,make patterns,save old pieces to verify,make contour guide(if needed)
4.find local bodyman and buy him plenty of beer!
5.plenty of trial fitting....use sharp tin snips(aviation snips) cut area out smaller and then trim it carefully(you can use a straight edge)and tape to make straight lines for cutting.
6.more trial fitting,hammer and dolly...more trial fitting
7.when happy with fit grind/sand areas to be welded to bare metal,use your weld thru primer now.
8.if step 4.is followed it's time for a b double e double r u n and more test fitting and looking it over carefully for its fittment....If step 4 was not followed add band aids and disenfectant spray to the list.
9.practice your welding (spot welding)on some scraps or give body man another "Cold One".
10.you can use self tapping screws to hold the panel/panels in place...if working a long line you need to back up the panels with a block of wood or metal while installing the "screws" so as not to distort the body line.
11.with screws,magnets,a/c duct tape(the metal kind)installed to hold the panel.check it again for fit...several times,again you can use a straight edge for checking it along body lines,contour gauge etc. but check it again to be sure.
12.now if happy with fit,it's time..............for a "Cold One" and maybe a smoke,then check fit again,if still good........ time to weld.I start with a spot weld at one end then one at the opposite end.....then at opposing corners,recheck fit,then one in middle of longest path,then in between those welds,just spot welds,dont get the metal to hot and work your way around the areas to be welded staggaring the spot welds as you go.
13.grind spot welds down smooth,recheck fit,hammer and dolly if needed,check to make sure panel has drain holes etc,seamseal back sides,and grind outer skin for first coat of filler(I reccomend duraglass for a first coat,it is waterproof) then from shape to desired contours and prime and block and paint........Good Luck