I personally wouldn't touch it mate, but as Dave says it's your money your decision.

Just be sure that you think with your head and not with your heart and take someone with you that knows about Escort Cosworths.

I'm pretty sure there has been a few posts about this car in the Escort Cosworth forum, I'll have a look for them. Something about a Saph. engine and fibreglass front bumper, might be a different car though!

Good Luck!