Have a 2018 CL16BHB and want to reinforce the rear bumper per earlier recommendations in order to install a Swagman 2-bike carrier rated for e-bikes. Problem is, per pictures, there is exactly only two inches of clearance between the installed rear bumper and the rear of the trailer, not enough to weld another two inch aluminum tube and a clamp-on receiver hitch that others have done with earlier models. What other options might I have?