i need to add a hinge to the tounge of my trailer so it will fit in the garage. with 10% of the weight on the tounge i dont have enuf room for the hinge. i saw somewhere on here that someone said tounge weight could be between 7-10%. i have enuf room for the hinge with 8.65% of the weight on the tounge. and its a single axel trailer. before i start cutting.....is this acceptable?