The Gee Bee R2 plans are from Adrian Page as well. I did a lot of research and found him to be no longer in business. Here is a link to the plans: http://www.rcmmagazine.com/store/sto...ZYqPn0cGs015r0
I'm going to vacuum form the parts. I figure I'll form the parts from balsa and use those parts as the plug. I'll carefully carve the plug based on the plans of course. I don't think it will be too difficult. I've read a few threads on the subject and think it's doable.