First up, Ryan found over half the Sports Card Magazine inserts that I was looking for. Issue #64 (published in July of 2007) had three bonus cards from the 2007 BBM 1st Version set - Kuniyuki Kimoto (who had been traded from Nippon-Ham to Orix at the end of June) and two Americans who were returning to NPB after briefly going back to the US - Brian Sikorski and Alex Ochoa. Kimoto had had a card with the Fighters in the actual 1st Version set. This is the only BBM card of Sikorski with the Swallows.
BBM did something similar the following year (issue #93 in May of 2012) although it was more of a highlights subset as it included a couple veterans as well:
|2000 BBM Giants #G103|
|2008 BBM Touch The Game #073|
|2015 BBM Bs Soul #08|
|2015 BBM Bs Soul #22|
|2016 Epoch Record Breakers #18|
It's hard to tell from the scan but the card is pretty big - about 7 inches by almost 10 inches. It came with the original 40 year old card wrapper:
So sorry for the long post but I was pretty excited about all my new cards. Thanks so much to Ryan for tracking this stuff down for me!