Thanks for the inspiration! Been stuck in a rut lately about what to mod next, and the concern of DOT/E compliance has stopped me from messing with the headlights until now.
But would for instance these:
https://www.amazon.com/Headlight-Harley-Davidson-Sportster-Headlamp/dp/B07SK22Z8H/ref=psdc_8323665011_t3_B018LXCV4U
Fit inside the reflector so adjustment is retained? And they approved as well.