Thanks for all the advice. I will see if I can try another coil.
Tonight I got it started, took a lot of cranking, and eventually started with some throttle. Ran very bad and would stall if left to idle, but after it warned it seemed to run okay.
I pulled off a few things to check, and one thing I did find was that at first I couldn't blow through the PCV. After a bit it did seem to free up and I could blow through it.
I have a catch can fitted before the PCV and I emptied it and out came a reasonable amount of oily liquid, the consistency was closer to water than oil. Photo attached.
I put in a spare PCV and bypassed the catch can but will need to try it in the morning to see of it made any difference.