Replacement guard for early 70's Fender P bass?

is there a source for an aftermarket guard for a 70's p bass? fender has the 75 ri jazz guard with all the right holes but im not seeing anything for the p. ive got a 72/73 that id like to get a black or white guard for (currently has an aftermarket guard with no thumbrest/pickup cover holes and is drilled for a toggle). its had different guards on it through its life so the body has holes for both treble and bass side thumbrests, so either will work.