FlyBoy95

I just finished a build similar to yours in length (98") and it came out at 14 lbs but the Zenoah G-26 is a heavy engine but it had mounting lugs on its front to mount the cowl and dummy engine so suited the build well. Other extra features were plug in stabs, an adjustable horizontal stab and a drop bay with doors and mechanism. It also was a scale build so had a good bit of music wire undercarriage and wing struts.
You should have no problem building a gas plane the size you want under twelve lbs unless it involves specialty stuff or its design requires adding weight to balance.

Thanks AA5BY. i know that gassers are generally heavier than glow. I am looking at something around DLE 20 RA, the Cloud dancers going to be nothing special.
tomclark have you had any issues with the aircraft being too light? (such as weakness or instability in wind)

Thanks again

FlyBoy