I’m ‘almost done’ with my ‘31 Model A coupe body. I have reprod ( absolute sheet metal) floor panels in front, under, and behind the seat. My question is how to best connect these panels to the car. I was going to simply stitch weld them to the sub frame, but now I’m thinking it might be nice to be able to remove them in the future. They fit well. I will use seam sealer at a minimum. Thoughts or suggestions?