Thanks Peter for method of getting back on which I just used as a last resort having been trying to log in using old details since this edition of the Forum hit the screens. I'M BACK!!!
Thank you Vince, I do hope you are well.
I have now separated the rebuild from the re-design. I am rebuilding the original engine as 'standard'.
I have another engine, an early small head Jabiru, which will form the basis of a radical re-design.