Hi Bungs, mate I have a 6.5m Glass boat, 175 litres on board, we take an extra 80 Litres in jerry's and have never had a problem. It is 52k's from 1770 boat ramp to Lady Musgrave. We have had a few members run out and it's an expensive habbit being towed in by VMR $600+, but depends on how much running around you do.
Cheers Rob T/Red C