part finished model glider (Sawtry PE28)

wings red underneath and yellow on top. Fuselage assembled but not covered. Rudder and tail plane there but not fitted. Wings veneered foam and do not seem to be warped. It is rather old as I think I started it around 1972. Ideally needs 2 channel radio. A small roll of Solar Film has the brown paper wrapped round it from when I bought it. Sadly I have lost the build instructions but if you have some idea about model planes then will be simple to finish it off. John (SAWTRY)