69 corvette vin on frame

[webco 1]

I was wondering if anyone could help me out on a 69 corvette. I need to match the vin tag with the vin on the frame. I know there is a stamp on the frame on the drivers side right about where the seat is. My problem is, the body has already been painted and the only way to check this stamp is to pull the body off. I was told several other locations such as right infront of the drivers rear body mount, by the drivers rear shock bolt and on top of the rear crossmember. The frame has also been completed so I need to go about this very carefully. I was just wondering if anyone knew for sure where the 2nd vin stamping is before I start taking thinner to a finished frame. Thanks!