Looking for ideas with bedrail clearence on 2013 Ram 2500

The neat thing about a short bed truck is we don't need 6" of clearance at the rear of the trucks bed. Look at the pic. The aft end of the trucks bed will never dig into the bottom of the 5ers over hang unlike the long bed.

I would be more concerned with more weight on the trailers rear axles if it is nose high. A trip to the local feed store/scrap steel yard or any platform scales and get the trailer front axle and rear axle weights