Escort RS Turbo in the workshop

I've had this car in before, the owner has not had a lot of luck since buying it and now there's quite a list. The most apparent issue is that intermittently it won't idle, it was displaying this fault when it came in. It's also got what sounds like a noisy first motion shaft bearing, a notchy shifter, oil leaks from both half-shaft seals and the wrong exhaust and that's just a few of the items off the top of my head.