Good stuff! I wish I had access to one of those when I was doing my rust repair!
If you're doing the welding, one bit of advice from me would be to TAKE IT SLOWLY!! Even if it means doing a few tacks, then leaving it for 10mins...then doing a few more stitch welds...then leave it 20mins (whilst doing something else).
I went a bit too quick in a few places and managed to warp some panels which just meant more work during panel beating
Good luck, it is very satisfying (but frustrating!).