Before we bought our GT we were also checking out Shastas, too. While researching, we ran across this web site -
http://autos.groups.yahoo.com/group/vintageshastaclub/ (BTW check out the trailer art, very cool)
I know that a trailer like the one you have would be snapped up pretty quickly. The finns, alone are worth alot to those folks.
You have a very cute trailer, and it is tempting.....but I have been told that I can't buy another trailer until the GT is done
Barb