They will probably send you the driver, if it’s the stock one, and if you ask to pay for it.
I have asked for the driver of the MT01 along with the stock reflector, and they have agreed to send me both for 15$ total, which was a good price for a 40$ light.
Also, CNCman, would you be willing to go the FET route?
Texas Ace has linear regulator+FET driver for the MT09R, and it is a beast. With 8x21700 and the FET driver, 3xXHP70.2s would be an absolute monster:
Or just take this driver from Lexel, but it is limited to 6000 lumens for the Haikelite MT07S, meaning at max of 8000-9000 lumens with a triple build: