Ed a 16 X 96 would be leaning into the "largest" realm,...
Any larger swing should really call out a longer distance between center / bed length.
I LOVED that old 20 X 80 Summit I had at the old (big) shop,....even if it did work a man half to death,....but if I ever get into that size machine again,....I'll damn sure want it LONGER.
That said, an ACTIVE search is in progress, so anything that you can send regarding likely candidates most appreciated.
Not just Smoke wagons,....this "Cochise Pump" project looks like a good play, and COULD be a fine line of small production work.
GTC