Ok guys im new to rc boat, and i got an apache for a good deal...so i gutted it and put fiberglass to reinforce the hull...im wanting to go brushless and ill be using 2 EP4500 6 Cell 7.2volt NiMh Sub C Pack in parallel...i also have a prop from a bruhless blackjack which is 1.6" x 2.5".....not sure what kv motor i should get??