I’d replace the front derailleur and run it as a 2x. The rear derailleur may accommodate a wider range cassette. Not as big as found for 1Xs. I run an 11-34 cassette with 24 and 36 rings. It works for my hilly area and chain rings for my very very old Sugino crank are cheap on Amazon. Forget the name but they claim US made.
Last edited by biker128pedal; 04-29-21 at 11:52 AM.