UC to RC conversion
It ceartainly has been done in the past. The RC Nobler is a convert and is still being produced in kit form by Great Planes.
The problem with the plane pictured is hinging the surfaces and getting the control linkages made in the plastic material. Not impossible but you may have better luck starting with a kit and building in the necessary parts. Herr engineering (now part of Sig Mfg.) has some nice designs.
EXCAP232