Hi Wisemen,
I bought one to mod a while back, first I did this https://budgetlightforum.com/t/-/24007#node-27814 Then I did this https://budgetlightforum.com/t/-/24333#node-28244 The major modifications to the light were based on Match's "15 minute mini mag mod". If you don't like TIRs and would prefer a reflector then this might help you out https://budgetlightforum.com/t/-/25102#node-29240. Coated 22mm lenses can be found at Kaidomain.
Best,
Brian