I like the receiver/ post method. Here are a few pics of one I had laying around:


As several people said, I like using u-bolts to attach the receiver to the frame rail. Then I use bolts to tighten the stacker into the receiver. I like bolts instead of pins because it keeps everything from rattling around. Make sure to keep the bottoms of the uprights open so that water can drain. The receiver system is nice because it is so versatile. You can move the parts around as needed, and all parts and components are interchangeable. If you need a mast support for example, it all uses the same hardware.


The upright with the flat plate on top can accept a single roller, hull cradle, mast cradle, or a crossbar. And it all can be assembled with standard u-bolts. Make sure that your frame rails or x-bars are solid and heavy enough duty to survive the loads. I've found that if you talk to a trailer guy, they will waaay over-engineer the parts, as they don't really understand the 'boats' that we trailer that well.

Karl's right, 2 $10 sleeping bags work well for temporary bow covers.

Hope that helps!