Re: huffy santa fe
Women's bikes tend to offer engine/ fuel tank mounting challenges. Not that it can't be done just expect a little more work than with a men's bike. Mounting the kit supplied fuel tank can be accomplished by mounting the tank behind the seat and routing the fuel line to the carburetor. If the Santa Fe has twin down tubes then you'll have some problems getting the engine to mount and you might be better off going for a rack mount or friction drive set up as opposed to the in-frame mount. My wife owns an 80s vintage Huffy Savannah that I have looked at but abandoned due to the twin down tube design. One of our members, Silver Bear, has some succesful women's bike builds and he might chime in with some suggestions.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"