Been under 'Isla' all day changed the oil, coolant and transmission oil, treated the gearbox to some moly and the engine to some ceratec after a thorough flush. She's purring even more than before now.
Also put in a nice Blaupunkt stereo and did a amp delete and new speakers all round. The door cards on my zed are shot to pieces and several bodges in the past have made them unworkable so I'm going to need to source new/good used ones.
I checked underneath and it's in great condition generally, the front right has had a new wishbone but the shock is dripping oil

so that's going to be the next job I think I'm just going to replace the entire front suspension and get her tracked nicely. I'm going to try and keep the m sport suspension setup as I like the profile it gives.
I really appreciate the advice from you all. Hope to meet some fellow Z enthusiasts in future!