My Dart Swinger Project!

Thanks what would be the best way to weld the holes? Typically I would weld a piece to the back and fill up the hole but there is no way to back it. I dont think my welding skills are quite on par to fill a blind hole haha
Sure they are. In fact this is good for us dummies. All you're trying to do is plug a hole. Little zap. Let it cool. Little zap. Let it cool, etc, etc. Grind it flat. Get a scrap piece and practice first. Which is good advice for any welding project, really.
Now all that being said, get some good video when you set the pile of leaves on fire that you, like most of us, store in our cowl. haha.
Check youtube for techniques. Quick search found this.