I'm learning to weld on a couple of duff doors I picked up. Rot in the usual places along the bottom. I've cutout three offending sections but can't see how I could fabricate the required shape. I've had a look at the Alan schofield brochure and they used to do a replacement section for the whole bottom of the door but now it's NLA. Has anyone found another source or can recommend a solution. I don't see how I could make the required channel that runs along the inner edge.