I was wondering if this could be adapted for the purpose.nope. nut let me know if you find one. I've got a cateye "be seen" thing on top of the reflector at present.
Quite a bit bigger than the stock reflector I think. It looks to have a good depth of plastic for the 'clip' that might allow a screw to hold it in place. I think I'd want to see one in the flesh and check it wouldn't interfere with the fold before parting with my hard earned.
I was wondering if this could be adapted for the purpose.
https://www.cyclestore.co.uk/cateye_reflex_hl570_led_auto_front_bike_light_and_reflector-ID_24993
What about a head torch ?