Sadly, you need the Superhitch as pictured in that GIANT large wide photo above. There really is no alternative.
The Superhitch uses two square tubes instead of one as in a typical receiver. This is critical for towing your heavy trailer.
I used a long extension on my 2 inch class V but was towing a lighter trailer. It worked but I was never fully confident in it. Wen u extend the hitch like that there is a lot more torque pushing on the extension.
The tie-downs for your camper are a secondary concern. Lots of ways to make that happen. Get the right hitch, the Superhitch, then figure out the rest. You can bolt on the Torklifts, or weld them, or maybe the Superhitch has a solution for you...
