If somehow this driver: https://budgetlightforum.com/t/-/37354 could be cranked up to 5A or so to the LED and output voltage reduced, it would be a great match for this light. You could make the driver diameter much much bigger for the BOSS1 - width is no problem at all 
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Dale - that's a great example. I don't have two de-domed matching lights, least I know of off hand. I thought though there would be examples around, maybe going way back: rdrfronty, relic38, ILIKEFLASHLIGHTS, RaceR86 etc., plus a few others that posted some real classic stuff. One guy who did mostly de-domed throwers had some great beamshot posts, think from Eastern Europe -- he was pioneering de-domed LED's at the time I thought, and had some great comparison shots.
Edit: Found it!! It's viffer750, shots here: https://budgetlightforum.com/t/-/12247.
But this is one of rdrfronty's classic, lists a XP-G2 and XM-L2 TM31, both dedomed: https://budgetlightforum.com/t/-/25465 (I did the XM-L2 dedome ).