Bike is on its way, being shipped with Nirvana. That means I have a bike box to borrow if you want, Trogs. Packing the wetsuit but suspect I won't be needing it.
Many thanks Dave. I was out at my lovely LBS hiring one of theirs when you posted. Benefits of being a regular customer meant they gave me a good deal. It's now all packed up and ready to go - except for the need to open and check that assorted bits (tri bars/skewers/bottles etc) are in there several times between now and Tuesday evening.