BillD mentioned Kilby Snow. Unless you, like Kilby, are left handed, his style will have to be adapted in order to play with the right hand.
I haven't taken the time to peruse the thread, but after a quick skim I didn't notice anyone suggesting modifying the 'harp to lower the action. I have done this by gluing strips of felt on top of the ends of the chord bars, reducing the distance the bar has to be depressed before it contacts the strings.
Good luck Kaleea. Arthritis has given me some idea about what it's like to have to play with pain.