A friend is 3/4 through making a Led Zep pin out of a Bally Evel K. We are working making the chime unit play Zep tunes. the playfield art is the big hang up right now. Cab and backglass are done . I think pics are on What do you want in your Led Zep pinball thread . I also know a guy who did a Laura Croft Tome Raider out of a Bally Bobby Ore i think.