Sold my Mum's Escort Mk2 Popular few months back for more than she paid for it 30 years ago, so just shows you and hers was the basic model, drum brakes all round etc. but it was in very good original condition, not perfect like yours, cos she used it everyday!
From my experiance trying sell it, just be patient, I had alot of dreamers ring up, but even I was surprised how much it was worth. First guy who actually could be bothered to come and view it bought it.
If my Mum's car is a guide, and I nearly sold it for £400!!!, silly boy, yours is easily 10K min.
Good luck and hope you get as good a price as we got.