Big-Jake,
I make money spreading lime with a barge. However if you can back the spreader truck up in several spots you will be just fine. Problem is most folks can not do this. Also you are right on with the 10 tons. Scott is one of those lucky "yankees"

that don't have to deal with the crappy soils we have in GA. Scott it is pretty common here to lime with 4 tons/acre. I have put 10 tons in a 1 acre pond before and only brought the alkalinity to 28 4 months later. Also Jake I think you no this but do not fertilize until next March/April when temps rise above 60.
ALso you need to make sure the spreader truck dumps the lime off his power takeoff not the drive shaft. This way he can back right up to the pond shore and go to town. It will hit the water and spread quite well.