hello i had to modify my 24' pontoon boat trailer cause toons was rubbing tires, so i raised the pontoon up with some fabrication it sits nice now on bunks,but i am worried i build it too high to get above the tires. i measured from the bottom of the toon to the ground and i have 30'' is that too high cause it seems way up in the air now. and how far would you say i would have to back up into water to get it off cause i haven't tried it yet. and i have a 2013 ford f-150 2 wheel drive ??? any help will be greatly appreciated