Quoted from TREX:
Looks like Beatles topper 2nd run will be out before Black Knight SOR. Thanks to AGSgames.com I was able to just get both Toppers for Beatles and SOR. It appears they are not listing the Beatles topper on the Stern website, but you can put in an order with stern distributor. Hope is these puppies will be on the street in a couple months or sooner. Arcade Game Sales out of Maryland took care of it.. I'll be looking at them for future pin purchases.
I was afraid I'd never get my hands on one! I pre-ordered my topper with Cointaker, but I don't have an exact ship date yet.