sell it... and buy a '70s or '80s chromoly or better (531, columbus, valite, vitus) double butted steel road bike in your size for $200 or less complete with an on-frame derailleur hanger, cotterless crank, aluminum rims and downtube shifters, then spend additional funds and precious time restoring it to like-new condition with a new chain, rubber, cables, housing, pads, tape, and freewheel, and you'll have a bike you can ride across county line after county line with a big satisfied grin on your face knowing you didn't sink $200 in a 40 pound monstrosity.
[run on sentences are my specialty.]