Hey RCS.
Finished my foamy. I used the ca hinges like you suggested- worked great and easy. For beveling I just used the trusty sanding bar like I do on the wood ones had them done in a couple mins.
First flight was great for a couple of mins. till my tray broke. Tried to land with my TX hanging at a 45 degree angle plus the plane was a little nose heavy. Dropped it alittle hard and broke the motor off.
Flew it again yesterday. Cold and 15+ winds. What a blast. A couple other club members were getting a kick when I would fly it to me (with the wind at my back) head high and slow the motor till the plane looked like it was parked in the air just in front of me.
All I can say is these little foamies are great and I am glad I finally got one.