They’ve been on sale at Mancinis for a while, and they still have them...... so I don’t know easy it would be to flip them for a profit.

According to the description in a MP catalog for that part number, they do come with valves.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads