I think you're asking for a lot here. That won't be an easy mod. Getting into the light shouldn't be too hard though. Its probably glued (red loctite) so you'll need lots of heat, a heat gun works best in my experience, and plenty of torque. You can use anything to twist, hell channellocks will do the job, but most folks prefer small strap wrenches because they don't cause nearly so much damage to the finish. After that though, you're on your own. Personally I'd suggest you leave your PD35 alone and buy a new host for your triple Nichia. Convoys are great...