I was able to make the existing exhaust bracket work. First I loosened the exhaust fittings and lubed them with high-temp copper antisieze to make 'em floppy, loosened the bracket on the muffler, and carefully tightened things up with muffler bracket on the inside where I wanted it. There is just enough flexibility and tolerance to get it to work without undue stress on the exhaust manifold/welds. The bracket still wants to be on the outside of the thick black anodized support, but it's all working out. About 500 miles so far and all is good.
BK