RE: Goldberg Ultimate 10-300 build
Animal,
My kit Ultimate was built fairly light, and I came in at 9.5 pounds all in with glass cowl and pants, aluminum gear, and a 2 pound Saito 150. I covered in monokote. I wouldn't be surprised if your covering and paint add 12 to 16 ounces. I think a roll of monokote weighs 3 or 4 ounces and paint will add up quickly unless you are careful. I don't know what mine weighed before I covered it. But I was at about 8.5 pounds without painting my cowl and paints and buttoning everything up. Painting the fiberglass, adding the rx, switches, a few linkages, plumbing, and all the little misc stuff to get it all buttoned raised the weight another pound. I guess how close you get to 9.5 pounds will depend on how much of all the little misc stuff you included when measuring and how light you are with the film and paint. Be prepared to move the battery aft a bit to get it balanced unless your gasser has a more rearward cg than my Saito.
Let us know!