Finally my muffler came in, after having to reorder it (did I say that already?) anyway, now that I have it I was able to fit the rest of the bits. I tack welded as I worked forward and then pulled the whole thing off and welded the seems complete. I will use a band clamp at both mufflers and between the flex joint and forward muffler, just to be able to install the system. Slow these days but at least a little progress.