Dream stood for 27 years

Hello - I bought a 1978 250N for £600 today. The guys delivered it grabbed the cash and made a very swift exit leaving me with a right mess. The bike had last been taxed in 1995 making it 27 years unused, sitting patiently in a garage waiting for some gullible idiot (aka me) to see the very cleaver advert. Cleaver, especially the pictures. They said it ran and rode perfectly (ran with a jump pack) but ride, no. Front brake not working, wiring a bit here and there and air/battery box (under seat) missing. But on the plus side it’s only done 23350 miles from new. It is a little beyond me as a project (I’m 73 now and past it) but for anyone with a good tool box and a little enthusiasm, great, I’ve put it up for sale at £450 (on this forum). Nuneaton area just off A5