The 1994 730 had longer-than-43cm chainstays. Tough to read the catalog scan but appears to be 43.6 or 43.8cm

Get an 18" 930 and you're gaining 6mm of ETT, easily corrected for with a stem or skooching the saddle up 6mm for a more roadie position.

1994 Trek catalog lists both the 930 and 730 BB heights @ 11.7 for most middle-of-the-size-range frames.