As the original said, it's MUCH MUCH cheaper to Cossie a Capri than an Escort. The 2.8i Special IS the one to go for, although you'll need to have the Gp4 wavy plates put in the LSD as they're pretty 'slack' as standard. It's got the right axle, suspension, brakes etc. don't go for a 2-litre or 3-litre.
Ben