ive bought far too many things and cars without looking first and to be honest if you prepare yourself for the worst you'll never be dissapointed.
I wouldn't expect alot from sub 400 quid cars, im after 350 and i have a near fully stripped GTI shell.
you get what you pay for in this world, you might get a strong engine but weak body or tatty interior, or mind bodywork but no engine etc.
swings and roundabouts. do you know anyone who can do welding for you? again as you dont have a drive youd be better off buying a car with tax and mot and doing small jobs to get it mint that diving in with a FULL resto project
good luck whatever you get tho fella