Last night on eBay I bought this old Japanese Luna uke. They said it was from the 60s, but the way the neck is the fretboard makes me think it's older. I imagine it's post WWII? The photo makes it look better than it is. The other photos disappeared from eBay before I could copy them. The finish is worn, scratched, and on the neck, discolored. It seems to be in good shape otherwise. I wanted to ask the experts: What would you recommend I do about the finish? I've done some work with wood and I just thinned down a neck and refinished it and it turned out great. I'm not afraid to make mistakes, or to correct them. I also wonder if any of you knows, or would like to guess, what kind of wood it is made from. Thank you very much for your help.