I have a 1993 Sylvan Pro Select 17 ft. I am having the VRO pump (oil/gas pump) removed and will just mix oil into the gas tank old fashioned style. I have about 1/2 a tank of gas in the boat. I am not having any success finding specs for the boat that include the fuel tank capacity. Any ideas of the size? It is under the marine flooring so getting at it is not ideal. I can drain all the gas, but that isn't ideal either. Thanks -- any help is appreciated.