AC Eclipse....
Flywilly, I have seen a couple, and I have noted that:
It is a plug in wing and stab, and it is fully composite, with foam wing a tail, and rudder probably. The wing and tail are already sheeted.
The glass work is very nice, and very light. Not a plane you will repair after a crash.
It can take a stock OS setup, as the designer is sponsered by OS, and works for them, so his plane was obviously set up around the RX-F1.
I am pretty sure that it is a pipe tunnel, alot like the PL designs.
Not sure about the gear.
Hope this helps,
Robert.