So there I was, booked a days holiday, arranged for my Dad and Father-in-law to help this Friday, then Caterham call to say "we might need to put the car back to Monday next week". This means I would lose this weekend to start building the car and friends have to be put off.
After a very honest assessment of the situation I said to Tim Ward of Caterham that "there is no way this can be delayed". He then made some calls and we are back on. The delay was due to the car going in late to the paint shop.
I thank my lucky stars that this is now back on for Friday!