So I was doing some research on what those holes could be and it looks like someone mounted something there, so tonight I'll weld them up. I also noticed one of the holes for where the voltage regulator mounts is oversized, so I have to weld that one up too and then drill it out to the proper size for the original bolt. I'm also going to drip check some seams and seam seal the A pillars and then strip and epoxy the fenders. This weekend I want to start on the roof, we'll see how far i get.