I could use some advice on high capacity hauling techniques:

With the acquisition of our 3rd boat this summer, I have run into a capacity problem on top of our Jeep Cherokee. I wonder if any of y'all have tried the "J" cradles and what you think of them? I am thinking about this configuration: 66" Yamima bars with the 16' 24" beam Eddyline on the Hully-rollers in the middle and the Pygmy boats outboard on each side on the Hull Raiser J cradles. (an artic tern and coho)

Yeah, I know I need a trailer but I don't have the money or the storage space for it.

Thanks in advance for your thoughts