I trudged out through the snow and took a closer look at what I have. Seat post to crankset measures 18", horizontal from base of stem to SP is 22", which makes the frame an 18'. This is about 3rd from the smallest according to the 94 Trek catalog. I'd need to go about 3 sizes larger to gain 1" on the horizontal distance - aka reach. But at that point standover height is at my uncomfortable max.
the SP measures about 35mm setback. Not sure I'd get much more setback than that.
so, to turn this bike into the gravel- commuter, I'll need bigger, gravel tread tires and add my Bluemel B65s.
Or, as jdawginsc said, pass the bike on to someone who thinks its the best bike evah! I have plenty of grandkids to choose from.