I am looking for plans for a trailer for a C30. I've got the plans for the cradle from Catalina with the measurements etc.. What I want to do is make a portable cradle that I can back down the ramp at low tide, pull the boat in at high tide, and pull the rolling cradle into the storage yard about 500 yds away. (There's no travel lift in Skagway.) I'm interested in what schedule steel to use Etc. Anyone got any plans?