Hello Norm:
I read your post, and see no problem with your plan from my experience. In fact I believe that alot of the shrinkage will have dissipated and you should have a good tight frame in the end. There could be a little twisting of the long members as they dry and cure though, years ago they worked with green cut timbers but cut usually in the winter when their moisture level was low. Before they had time to cure and twist they were up and were held in a secure manner against twisting to any great extent. This is a fairly small structure you are working on I am sure it will turn out just great --good luck