Next step is to mount the shorting plug, ESC and the battery tray. I glued a piece of 1/32 ply to the fuse and cut out the shorting plug hole. I then glued two pieces of balsa triangle stock to the fuse sides to act as a support for the ESC tray which is made out of honeycomb. I glued 3 dowels to the tray to act as supports for the screws that hold the ESC down. I've since changed the ESC to the Jeti 77 which is half the weight of the 90. I wasn't sure where the CG would end up so instead of gluing the battery tray to the fuse sides I decided to make it removable and to mount it to the gear plate. I used a 4/40 bolt and blind nut to hold the battery tray in place. I also put in a light ply brace in the front/rear which I then used to zip tie the battery to so that the tray wouldn't move up and down. I started off with the rearward CG (190mm from the leading edge) and have ended up with the tray more forward now and the CG is at 170mm. I've removed the rear brace and have only the front one in place now as well. I've also slimmed down the battery tray (made it narrower) and drilled lightening holes in it as well. Here are the pictures...

1. Shorting plug mounted showing the inside
2. Shorting plug from the outside
3. Triangle stock bracing for the ESC tray
4. ESC tray mounted using honeycomb
5. Landing gear plate - I added the triangle stock to give a larger surface for the tray to sit on
6. Hole drilled through the landing gear plate
7. The battery tray bolted to the gear plate - you can see the slots I cut in the gear plate so that I could move it forward/backward easily
8. The battery plate with tape on it so that I can mark the CG position - you can see the rear brace which I've since removed - the front brace is under the left hand side of the plate
9. RX battery and RX installation
10. The completed plane ready for flight
11. Another shot of the plane
12. The group at Tomcats in San Jose and 3 Neptuno's - my two on the ground (GP on the left and EP on the right) and Riot3D's GP Neptuno that he is holding