The problem you're facing is that there's only a tiny market who would consider spending £4500 on what is ultimately a 2001 5-door Focus in need of paint. I know it's 'worth' that (or even more than that) as it has a superb engine and a lot going for it, but finding someone who wants to spend that is going to be tricky if I'm honest.

I'd either considered breaking it, or advertise it everywhere possible - Pistonheads, Autotrader, local free ads etc and hope that you find someone who wants such a niche car.