Let's just say, I am no gas weldor! Either couldn't get it hot enough to do anything, or was melting holes (#2 and #4 tip, old Oxweld W200 aircraft torch.) I'll get that process eventually but I don't think on this project, unless on the internal baffle (thicker). Cutting torch works well but need a smaller tip for it also, great for bolts and heavier stuff but too hot for the sheetmetal patches. Works, but the cut edges are too hot--melt back together behind the cut sometimes. Technique of course has its part in this as well
Thank goodness for MIG, that has been going way better. Pictures later. I've been grinding to clean metal, welding cracks, grinding down welds (ha, grinding OUT welds too!) and welding patches over same. One spot is very very thin, may have a "fun time" dealing with that section. Will post a few pics of that as well, pre-repair-attempt.