Hello and Merry Christmas folks. Just going to start repair on a CCPU for my CAA truck. As I approached this project (and the stack of projects I am collecting as time goes on) I made the decision to get a tig welder for body work as the consensus is that a tig is better than a mig for this. I am practicing daily my welds and am approaching the point I feel confident to tackle the doors and other sheet metal repairs. Would you folks suggest butt welds or lap welds between the new and old metal. I have seen both done in videos (more modern vehicles) but wanted opinions from those who have done it. Also the entire bottom is rotten on my doors so I need to replace both the skin and the inner part of the door bottoms, which would you do first? Any other tips and tricks would be greatly appreciated. Thanks