Thank you for the update!
If you ever decide to sell one or more of those bottles you might consider contacting Ralfy. He's a well-known reviewer of Scotch whiskies (and other liquors) on YouTube.
https://www.youtube.com/user/ralfystuff
Here's a review he did comparing 1960's and 2000's Johnnie Walker.
https://www.youtube.com/watch?v=UNw7muIbQX0