The only trouble I see is the battery drain from using 55 watts bulbs. You could tote some big-a$$ SLA battery around, or spend some major bucks on a light weight battery, but my recommendation would be to go with something pulling less watts.
I have switched to using all LED lights and have been very pleased. I am using the Optronics MR16 driving lights with a 3 watt Luxeon MR 16 bulb, with beehive LED truck marker lights in the back. My battery is down to a 3.6 Ah SLA battery weighing 2.8 lbs. I don't know what my total runtime; I have used it for more than 2.5 hours and it was still going strong.
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"Bad facts make bad laws." FZ