See I never would have e thought of that.The bike withe the 5 3/4 headlight had my bt80 on it with the lighting coils of course. It blew a crank seal so I removed it for repairs. What I do is mod the light fixtures and replace all bulbs with leds. I then run them with an aleast 2500 lipo. Will run many hours that way. This is a sealed beam I drilled with a diamond hole saw and bonded an led in place.
Very little draw on the battery. The wooden bike will be red one day its powered with an electric start 212 thru a torque converter. Its pretty quick.
U drilled out a sealed bulb. Nice. Your craftsmanship shows on these. I'm sure the pics don't do them justice.