These two links need to be pasted into the addressline in one line. Just cut/paste
The first is a picture of a telescoping mast support. The two uprights nest and have a pin so that they are adjustable and can be lowered for loading/unloading the boat without having to deal with removing the whole bracket. I have a template for the bracket which mounts to the trailer frame that I could fax to you.
The second picture is of a mast support made from UHMW which sits on the traveler track. It's real simple and you could probably make it from old cutting boards, which I believe is what that sheet of plastic originally was.
http://groups.yahoo.com/group/beach...%20sailbox%20and%20support/masptSlbx.jpghttp://groups.yahoo.com/group/beach...plastic-sheet%20mast%20cady/Davmaspt.jpg 
