Gee, and i had this vivid mental image of it on a gambrel, hung up by it's tailpiece, dripping strings off of the neck, and weeping tears of rosin. And as for the evisceration...oh, never mind. Anyway, ask Spaw about this, he is stout of heart, and should have good advice. In my experience, wood glue is pretty inert stuff, and should do fine. I am presuming that this is not a terribly expensive instrument. Try lacquer on a scrap, and see what it does to your paint. If it works, that will be a nice stiff finish. Perish the thought, but i HAVE finished inexpensive instruments with poly coats, and they do fine.