21' trailer frame dual axle

I am going to make the ramps nice, and have them slide in under the trailer and lock in place with receiver hitch pins to keep them put.

I have to see how tall this bitch is and then figure out a nice ramp height and angle. I could maybe make a bad ass compound ramp, that had a pivot angle in the middle to make them kind of like a dove tail design to make them shorter but still not bottom out of slam the lip into the ramps.

Edit basicly make the ramps short ehough so the car doesnt high center at the break over point on the end of the trailer, then have a 3-4 foot long flap at the end where it hits the concrete that folds out to extend it a bit more and mellow out the approach angle getting onto the ramps.