P/S 2 Fat model cheap lasers?

Hi Folks !

Does anyone have any cheap lasers for the original P/S 2 model I have a couple of machines here that are brown bread without a laser (I am try to get the son off our new PS/3 and get his old ones working)..

Umm the 400B, 400C, HD7 or 400R lasers would probably be best.

Cheers, Greg