Here's the solution I arrived at. I did order the cradles from Rick's store that are recommended for Hobie 20 bows. They fit like a glove, the only caveat being that the best location is about 2 feet ahead of the front beam. Farther back and the hull is too wide, farther forward it is narrower.
To lower the boat I unbolted the center section of the trailer frame from the tongue and from the wheel assembly and flipped the whole thing. It was a bit of work, but the results work great. The cross beams are very securely welded to the longitudinals, so I don't anticipate any problems there.
Oh, and here's a picture of one of the old cradles that shows just how little area was supporting the hull (the previous owner glued on the stupid astroturf - very abrasive stuff - bad idea).
![[Linked Image]](http://home.att.net/~jeffrey.becker/Tiger/OldCradle3.jpg)