£3000 will you get you an excellent example of a fiesta or more importantly escort turbo.
It wont obviosly leave you much incase it goes wrong but the standard of car you can buy with that money in todays market will get you a trouble free clean car.
Very recently a 60K from new mint white fiesta rs was up for 3.5k which to be fair looked like a stunning example.
You will get even more for youre money with an escort.