Vintage bicycle BSA Metro (Bush Hill Park EN1)

If someone has skills and knowledge it could make a good bike. It has 26 inch wheels , tyres are flat and won't pump up so tubes or valves are stuck. Sturmey Archer 3 speed gears in hub seized up . rear brake seized or might be cable. Front brake works and wheels turn One pedal is missing cotter pin and is diferent from the other. I had plans to try and do it up but didn't get round to it and is just taking up space . I can leave it in the front garden if time and date are arranged.