on one of the pics on their site, I'm pretty sure I saw a Phillips Saferide mounted. They must have a mount for the fork crown like Bob posted above. I think I could figure out how to mount a Spanninga Pixeo to the back, maybe with a brake post mount. Or a Cygolite Hotshot with a rack mount

I think I would have a good taillight mounted to the rear of the trike and another on the left front fender.

I think a bike like this really needs a dyno, but I agree there aren't any dyno hubs that would fit. The B&M sidewall dyno looks okay