I currently own a Technics EN4 organ and have the chance to purchase a VERY cheap Technics GN9. The GN9 has had a spillage on the keyboard and two keys do not work. As the GN9 is some distance from me I can't check the level of damage and whether the keys may be repairable. Can some tell me if the GN9 keyboard is the same as other models so that I could swap keyboards by purchasing another low cost machine. Otherwise can someone tell me if replacement keys are able to be purchased and at what cost (approximate). I live in New Zealand.

Happy New Year