Why not just build a Kadet Senior?

Extend the wings by 1 or 2 bays on each side. Boucoup square inches!!! Lotsa lift. Big fuselage--plenty of room for cameras and batts. Flies fine on a 4-stroke .91 or 1.20. Easy to modify-- ailerons -- flaps -- taildragger -- camera mounts -- big fuel tank........etc...

Unless you've got a soft spot for that particular airplane--the Predator.