Thanks Will.
No, I did not include the fuel weight. I'm sure that with the 1786g, your plane will fly just fine. And from your starting point, I don't think it could be made much lighter.
I would so much like to have my own molds for the plane, it would open much more possibilities. I'm thinking of:
-Thinner skin shell, maybe 25g glass/0,8-1mm balsa/25g glass or carbon veil sandwich, together with some more ribs and a good carbon/Rohacell main spar would be lighter but perhaps more difficult to handle. I'm used to handle fragile objects.
-Fuse mounted gear. Also, the original wheels are quite heavy.
-Original pushrods & bellcrank can be replaced with lighter ones.
-You don't need so much 1/8" plywood & other hardwood parts in nose construction, the less critical ones can be of balsa or sandwiched from vertical grain balsa and 1/64" plywood or carbon sheet.
-Yuriy's take-apart system is very good but not the lightest possible. Most of the aluminium parts could be replaced with carbon ones.
-There is plenty of screws in the model, the less important ones can be replaced with aluminium ones, and for example the access hatch for flap horn can be mounted simply with cellotape.
-Less vibration and no fuel proofing to worry about: Big saves in finishing.
Well, that was just brainstorming, but I think that every detail counts. Perhaps the best solution would be forget all that and go out practising..
L