Aircraft Model, WACO S.R.E , American 1970/80s r/c model, 56 inch wingspan, to be completed in Southampton, Hampshire for sale

Almost completed 1970/80s r/c model kit of Waco S.R.E biplane from the 1930s. This model was almost completed by a relative, who due to illness, lost the use of his hands. It has been in my attic for the last 20 plus years and would probably still be there for another 20 ! I have no interest or knowledge of aircraft, but feel it would be perfect for a collector to complete and fly. It does have some form of engine fitted, all the frame and wings are assembled, just in need of controls fitting and covering. The original box still has a variety of bits inside with plans etc. It has a 56 inch wingspan. Even though it needs completing, it surely has a value and must go as space needed. MUST BE COLLECTION ONLY !! I will not post/courier this item