I have a nice Japanese acoustic Daion L-999 that I bought twenty years ago when it was already out of production since the early eighties. I re-fretted it several times and now the fretboard is very thin (I wasn't experienced and the first times I've gone heavy with the sand-paper!). I'd like to put on a new ebony fretboard, bound with maple, but this is a job I never did. I tried to find some how-to-do-it on Frank's pages but I haven't find. Any advice (apart having it made by a skilled luthier!!)?