So you just earned enough money to buy a ZR1, but want the lowest available vin still available to the public.
ZR1 Number 1 went to Jay Leno, so that one's not available.
ZR1 Number 2 went to Hendricks Motorsports, so that one's not available.
That leaves ZR1 Number 3, currently in the private collection of Kerbeck Corvette. Of course, you know how dealers work. Offer them the right amount of money and it could be yours. For further information, visit them at http://www.kerbeck.com.