Re: weight distribution
10% tongue weight is the standard rule of thumb for a rear hitch trailer, 15 - 25% for a Fifth Wheel. Does not matter what you're hauling. You might want to look vvvvvvv for the Trailer and Towing section for more info on that . . .

Also, no matter what your bow or stern weighs, it is positioning on the trailer that will determine this, not necessarily the weight distribution of the boat itself. If it is heavy, you can move the bow stop towards the rear, too light, move it forward . . . If you move it back you don't want any of your hull hanging past the bunks for proper support.