Which 7 do you still need?
I have a Billy Williams in the mail (not the one above), so here are the other six:
441 Thurman Munson - New York Yankees
534 Jim Hickman - Chicago Cubs (Yellow)
559 Pete Rose - Cincinnati Reds
568 Juan Marichal - San Francisco Giants IA
625 Rookie of the Year Award
626 Babe Ruth Award
I'm also considering adding the Traded Cards in the 6th series, of which I have all but three:
751 Steve Carlton - Philadelphia Phillies TR
753 Denny McLain - Oakland Athletics TR
754 Frank Robinson - Los Angeles Dodgers TR
I've seen all of them on eBay, but they're either creased or priced over the book value, and I hate paying too much for something more than I love having the entire set. For me, the thrill is much more in the hunt and obtaining the bargain than being a completist.