Once again Tom, you do good work. I have been thinking about your top cabane attachment. I think you said you did not want to use the wire. The ARF uses two bolts. The only difference in construction is 1/8" ply in the center of the top wing. The holes in the alum A frames have holes in the top that the bolts go through. The bottem of the top wing has holes cut to slip over the A frames. It's apart in the shop right now. I am going to snap a few pics and post back.

David