I inherited what I think is a 1960's Kamaka pineapple ukulele. My wife's aunt lived in Hawaii in the mid-60's and this was passed down to me. It is in really good condition, but could use a bit of TLC. The issues: 1. The friction pegs don't like to be at full tension. Perhaps this is adjustable with the screw on the back of the tuner? I'm considering replacing the tuners with Gotoh's UPT tuners. Bad idea? 2. It definitely would benefit from new strings. What is the best place to start? Thanks!