RE: e-Neptuno
Some weights of the components...
Fuselage - 945g
Rudder - 55g
Wing tube - 40g
Left wing - 400g
Right wing - 410g
Left stab - 115g
Right stab - 145g (includes stab tubes)
Spinner - 95g
Wheels - 20g
Wheelpants - 30g
Landing gear - 105g
Accessories - 135g (nuts/bolts/screws/control horns/clevises/motor mount, etc.)
I'm estimating that with a Hacker 14XL and all servos, wiring, batteries, etc. the plane should come out around 4860g.
Picture of the accessories, stabs, wings, fuse front, wing mounting area (including adjusters), stab mounting area, fuse rear and the removable rudder.