Joe S.
Glad you enjoyed my book. I'm also excited that Lionel is re-issuing some of the great promotional outfits that Lionel manufactured, especially outfits like the X-628. This will expose a whole new generation of all the great things Lionel did in the '60's.
The one pictured in my book came from eBay. The 6017-200 box in collectible condition is tough to obtain.
I included in the appendix of my book listings of items and the outfits they came in. On page 836, I included all the ones with Sub Bases (i.e. the 910).
You should also check out the 12885-500 Lionel re-issued last year. This is an extremely difficult outfit to find complete and boxed in collectible condition.
Thanks,
John Schmid
Author - Authoritative Guide to Lionel's Promotional Outfits 1960 - 1969
www.projectroar.com