The log book shows the car as a Fiesta RS 1800 so I assume it is an original car. The body isn't perfect on it but it drives fine with no problems at all.
Have had a look on e-bay and these cars seem to be going for anything from £300 for a non runner and £1k for a good car. Hoping I can get about £500 to £600 for it.
Will try and get some pics up in the next few days.