You got skillz bro. I rebuilt a 60 chevy El Camino ute once. Had to fab a bunch of stuff too. I learned as I went back then too. If that's galvanized steel sheet, I hope your wearing a mask and not breathing the fumes from the galvanizing.
Fun project. Your welding will come around on this build! Be sure you can see the puddle when your welding... My parents live in Whitianga, we visited last April.