F25 Storage Cradle Template

[Boaterguy]

I am looking ahead to winter storage and I wonder if anybody has a template or a plan for building a storage cradle for a 1975 F25. I think this would be a good alternative to stands, and in reading the original manual, I noticed that the manufacture recommends this as a way to store the boat in the winter (re distributing stress induced by weight equally)

I saw this http://cgi.ebay.com/ebaymotors/1973-Tro ... 06.c0.m245
and it made me think of this alternative