Well, you are all correct as I see it, CA melts the foam, epoxy wont work, and I have also seen 5 of these Planes and None had the antenna mast installed. Well mine does.....or did. After the CA melted away the foam I made a receiver pocket from scrap balsa and installed by long tweezers, cut slit in top of fuse and there you go!!!. The only thing is, it is very hard to keep from hitting and breaking off while servicing the plane, installing wing/ removing wing, transporting, etc. Good Luck what ever you decide. it is a SUPER PLANE to fly, LOVE mine...