I’m not sure how physically feasible it is to put a stack of 7135 chips on the FET pad. With the 7135’s middle/wide pin up, IIRC, that means from left to right the pins are LED~~, GND, PWM. Meanwhile, the FET has four pins and a big pad. The three leftmost pins are GND, the right pin is PWM, and the big pad is LED~~.
Adding a Moonlight Special driver as a slave board might be an option, for testing. Or a slave board with only 7135 chips on it, wired to/from the Q8’s FET pad. Or using a FET+N+1 Q8 driver without the FET. Texas_Ace made a nice 46mm one:
He might even be willing to put Anduril on it. The ramping table will be a bit messed up with the second power channel so low… so it’d probably be a good idea for me to make a special build for it.