You might consider a Funtana for 20cc play. They're over 1000sq. in. and pretty popular with the guys flying them. Many are built 30cc and of course they are just nuts on those, usually weighing under 10.5 lbs. Point is, the 20cc Funtana should be well under 10lbs with any care.

The 20cc profiles pretty crazy too, but I would want one 900 inches or bigger. The Chinese offering I keep seeing (under several brand names) is closer to 750. FWIW