ProTeam is a joke. They advertise Corvettes as "matching numbers," but in their catalogs they define matching numbers as matching CASTING Numbers on the engine -- they do not check numbers on heads, manifolds, rear ends or trannies.
NOW as for these cars: In 1963, 199 cars were produced with the Z06 package, which included (for most of the year) knock-off wheels and the 36 gallon fuel tank. 63 cars had just the 36 gallon fuel tank.
These are not million-dollar cars. A Z06 with racing history could bring $250K away from Barrett Jackson, but this is stupid. The one-of-two AC/Tanker is like saying my '99 which was one of four Silver C5s with 6spd, Z51, active handling and heads-up display was somehow worth 10X a standard optioned car. (Allstate said it was worth maybe a grand more when they totalled it!)