It's not THAT bad! It still has the OEM spoiler which is a plus! Give it a good wash and a full machine polish, maybe some new wheels, engine, complete loom, complete underside, complete new interior, lights (front & rear), some shiny new brakes and a quick bend on the jig and she'll be back on the road in no time! I'd leave the windows out, good in the summer! Is the 'every panel bashed to hell' look favourable now? It might catch on!
I'd offer them £8k for it, I know it's a little above what most people would pay in the current economic climate, but she's got potential!