Thanks everyone for your opinions. I do understand that there are downsides to all of my options, however, I feel that an electric motor is the way to go in this case.
I'm running a 6v system, and I'd really rather not have any voltage boosters in place that don't strictly need to be there.
I did find a 6v model on ebay, complete with cover plate. I'll keep an eye on it.
Thanks again!
