Thanks for the comments all!!
Will have a drawing for you soon MANDALAY, cheers!
Ok so on the weekend I checked coils and injectors and they were all correct and firing in the right order. Managed to get the motor cranking after playing with the starter motor (might have been a little rough after sitting still for so many months) however MOTEC showed these errors:
Which basically means I needed to look at my Ref & Sync wires which I checked and discovered that the earth wire was actually detached from the plug:
Hopefully should be able to grab a spare one from a mate otherwise I shall test the motor again after a quick hook up with some aligator clips…
…slowly but surely its getting there! I finish house sitting over the next week so will have some more time to focus on it then.