About all I know of is digikeys sst-10.
For a driver I would probably go for this. with the single mode UI option if using a copper mcpcb and a single li-ion. Might as well pick you up a 3535 copper mcpcb while your at mtnelectronics. Copper XP / XM / MT Series MCPCBs
Djozz’s test with UV leds. 4 more 365nm UV-leds tested
I dont know which size mcpcb your C8 copy takes.
This might also be a option for you, well regarded UV light.