RE: [UtVgG] Star Wars PROMS

Good ol RA-Elco would be the place to start for the chips.

RA-Elco Inc 2780 S Main South Salt Lake, UT 84115 - 3543 (801) 487-0571

Next you'll need to get the PROM burned, I'm not sure if the images are in MAME or not.

Does anyone on this list have a PROM burner? ;)