Slowly starting to make some progress now.
Main priority at the moment is to get engine and gearbox bolted back together and onto the chassis. Still waiting on new engine mounts, so I'm taking the time to do little jobs in the mean time.
Started off by cleaning up the gearbox as above and now moving onto the engine. Quick rub down with a wire brush and a good coat in rust neutraliser. New clutch kit fitted, the flywheel was very rusty so a good clean up before fitting.
One of the glow plugs had snapped off, so that has now been replaced. I'm leaving them as originals as the system still works.
Next up was taking out the injectors for a clean. I've got an ultrasonic bath they will be going into for a soak, I may send them off for a proper clean but I haven't really looked into the best thing to do yet.
Quick oil filter change whilst it was up on the bench, ready for another oil change sometime soon.
Finally gave the fuel tank a quick clean up and coat in rust neutraliser, too.
Waiting on a paddocks delivery before I can do much else engine wise. There are a couple of bellhousing studs missing.