It depends on how much you care about it. It probably wouldn't take you a lot more work to start a new bow than to start fixing one, then two and maybe three-four issues. I have several of those "to fix" bows waiting for a belly lamination or something like that. I rather start a new one.
As for good woods: they don't come a lot better in compression than osage... You might try tropical hardwoods like bulletwood, ipe, ...