[Kev0607]

There sounds to be some sort of gearbox issue, which could be costly to repair, as its not dirty transmission fluid because you've changed it.

However, you've done lots to the car, so there's less for a potential purchaser to worry about & T5's are pretty rare. Maybe you should find out what that transmission issue is & get an estimate as to how much it'll cost to repair or for the previous owner to? If its costly, I think your chances of getting £2k would be dwindling.