LS7 Cylinder Head from a 2007 Z06 Chevy Corvette

Used LS7 head off a 2007 Z06 Chevy Corvette. 40,000 miles. This head is the highest flowing stock GM LS based cylinder head and is in great shape and was soda blasted and crack checked. Removed for cam and lifter upgrade and found a small blemish in the fire ring of the stock diameter head gasket and purchased a new cylinder head. Would work great with a larger diameter head gasket or if it was decked and used on an engine with carburation. Are $1,188 new (+shipping). Am asking $550.00, OBO.