I bought my QV in Tacoma, salesmen were John and Dominic (not there anymore). They required a $1k order deposit. I tried ordering in Kirkland first at the AR/Maserati dealer, but they wanted $10k deposit. I've been happy with the Tacoma dealership so far, no issues and the ordering/sales process was smooth.
That being said, since there are 4 or 5 Alfa dealers within an hour, I'd pit them against each other if I were you. Tell them you're ordering from whoever will give you the best deal, then take that price to the other dealers and see if anyone wants to beat it. You definitely have options in this area, so you can be picky. If I could do it again, I'd probably go to the Ferrari dealer in Seattle because... well, Ferrari.