For all the hate Nissan is getting here, I have a similar experience with a Porsche dealer earlier this year. Did not want to accept a deposit even though I am willing to pay them… cause they cannot guarantee a delivery for the next 18 months and I promptly took my money and put it on a Z. Still...
Best bet is to search for the car on the Nissan website… that is how I keep track on inventory around me.
https://www.nissanusa.com/shopping-tools/build-price/sports-cars/nissan-z/2023/6-speed-manual-transmission/29517:BABey:AwrDYCFg/exterior/inventory