Repairing the gas tank seam

I got a little too ambitious with the angle grinder trying to clean up the line along its weld seam, and ground all the way through it. After hours of welding, brazing, and grinding the small pinholes would not go away so I decided to fill them with bondo on the outside and use a POR-15 motorcycle tank sealer kit on both tanks, which will also remove and prevent rust. The kit is around $33 on por15.com.