For anyone interested, I've started a retrospective build log of my car on PistonHeads:

https://www.pistonheads.com/gassing/topic.asp?h=0&f=&t=1834536

Very pleased that it was also featured as readers car of the week:

https://www.pistonheads.com/news/ph-threads/sylva-j15---reader-s-car-of-the-week/41068