I can send you the files if you need them, just pm me your email address. I also have the mellow yellow rom files if you would rather have those. I have the mellow yellow running on my machine, its a cool little mod.
I also have a complete verified set of original roms I will sell for cheap. I had several sets from some boards that were completely destroyed with acid damage so I salvaged what I could off them. Im pretty positive I have at least one complete set left and a partial set.