Fixed it, It had sat for over a year so in one afternoon I stripped and cleaned carb, changed battery, jump started, moved (off the hill), rebuilt brakes, and fixed most electrical problems. Just need to get rear fog light working and it's MOT attempt one time!
Not mine to sell, is my Dad's!
Fixed my step-brothers Aprilia RS50 now too, well i say fixed, it runs, just doesn't stop, a problem in the ignition switch that means it doesn't ground the coil when turned of so to stop you have to switch fuel of and wait a minute (literally), or stall it! lol.