I put over 100,000 miles on a 55.1 converted to 12v with a 6v starter with nary a problem with the starter. All you have to avoid is what happened to you. Don't crank it long and a 6v starter will last forever. Just make sure it doesn't "stick" again.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.