Finally finished the muffler, sorry for the delay.
Decided to use an OE muffler, 2.7L from a '02. Kept the headers and hi-flo cats for now.
Required a bit of work the mate with the stock muffler and hardware. Happy with how it turned out.
Sound is very good at idle, and with revs. Will report back with road sound and drone (hopefully the lack of).
All in, about $250 for the muffler and hardware needed to mount the later hanger system to the '97.