i have a hand-me-down 15" crate k80 xl keyboard amp, and i am going to be picking up my first guitar (looking at the epiphone g-310) here within a week. a keyboard has a similar range to a guitar, so is it ok to use this amp?

1. will it damage the amp at all?
2. will it sound good?
keyboard amps go much higer and much lower in frequency response so it will work, it will sound pretty good if you have good effects though. the eq for it will be pretty weird though