While I was away on holiday I left the car with a local classic car enthusiast to do some repairs and get the car through the MOT. He replaced the rear bushes and fixed the steering UV joint and had to replace a rear wheel bearing that was grumbling. And she passed the MOT so all my concerns about the emissions were unwarranted. And he thinks he may have fixed the sump oil leak with some judicious welding.
Now I just need to get back off holiday to start driving her again.