Hey Ray,
So you're looking to do a transplant? 1W to 5W? I'll do it for you if it's that, but can't/won't if it's parts to be assembled from scratch (I will soon be in the middle of assembling billions and billions of similar modules for the Pelican -- well, maybe actually forty or fifty...).
If it is indeed the former, what kind of driver is in the head right now?
BTW, did you ever get my two e-mails recently about the Pelican? My account has been a little flakey and I've disabled my PM function so I apologize for asking you here...