In the meantime, Mr D'Arcy-Brain has an allocation of two to sell, and said one had already been snapped up and would be with its new owner in September/October while, all going well, the second would be signed off within a few weeks, to be produced to order at Goodwood and delivered by the end of the year.
One's expected to replicate the dark-blue model and its orange-mandarin leather upholstery to be seen on Hawke's Bay roads this weekend, although prospective buyers have up to 44,000 colour schemes to choose from.
By the time each is ready, it will have had about 450 hours' labour put into it from as many as 60 people, most with specialist tasks, such as the "artisan" honing of about $40,000 worth of gleaming timberwork around the interior.
Asked whether buyers tended to pay cash or roll up flashing the plastic, or with the backing of a finance card, Mr D'Arcy-Brain - who also has other models to sell such as the Ghost, the Phantom and the Wraith - said buyers of Rolls-Royce in New Zealand were special people in more ways than one.
"They've been entrepreneurs, they've run very successful businesses, and they're popular with their staff because they've looked after them," he said.
"And ... they are very philanthropic people. People often forget how much they have contributed back to the community."
Napier businessman Rodney Green, who instigated the Hawke's Bay Club gathering for fellow members, bought his Rolls-Royce Ghost having first seen it on a similar tour by Mr D'Arcy-Brain in 2012 - the first such tour after the Rolls-Royce dealership, the most distant from the factory in England, was established.
It wasn't his first; he had a pre-owned one in 1980.
But it is likely to remain only his second - and one of only four Ghosts in the Hawke's Bay which he is aware of.
He confirmed he's not one of the intending owners of a Rolls-Royce Dawn. Unlike most of us, he isn't even thinking of it.
Colleague and Napier fishing company boss Nino D'Esposito was, however, not quite so definite.
A Mercedes driver, he noted "[the car] retails at $837,000 but the exchange rate has brought that down to seven-eighty something".