I owned a Kona K2 for a few years. Not a bad guitar, sounded pretty good as an acoustic and also nice when amped. Straight neck, tuners kept strings in tune pretty well, frets weren't rough or had any of the problems associated with cheap guitars. However, the intonation was off a little and I had to re-tune whenever I used a capo.
Have you thought about trying a tenor guitar? Chords only need to be formed with a couple fingers and it seems like it would be easier to play for those with arthritis or suffering from hand injuries.
http://www.youtube.com/user/macdige?ble … hjsfK69S3w
DE