gjhinshaw,
OMG, I just happen to have a 3W60 sitting unused in my shop. The only problem is that it's an old side intake version and I wonder if the cowl is wide enough to conceal the carburetor. Now you have me thinking. A long time friend of mine and fellow flyer is crazy about Gee Bee's. He actually has a 60 size ARF that looks like your R3. If I showed up at my flying field with your 50cc version, He would die ! ! ! ! !....
