Woot! Finally delivered at 11:51 this morning. Now to update using DFU and then setup and figure it all out while playing. Later I'll decide what I want to do next before proceeding with migrate, copy or TM.
This slab O aluminium was frosty - It started up with nary a problem, but I patiently gave the screen some time to acclimate first.
Enjoy your silicone Mac's journey, and patience. All in all, it took 4 weeks short a day. Apple said 4 weeks, UPS delivered one day earlier, even with the circuitous unconventional route.