Welcome to the Strelets Forum. Please feel free to discuss any aspect of 1/72 scale plastic figures, not simply Strelets. If you have any questions about our products then we will answer them here.
All the above are rare, but they all come up on ebay from time to time and in the last year or so I have sold from my own collection all of them, they certainly did not sell for a kings ransom , so keep searching ebay and sooner or later you will get lucky.
Some are definitely there:
https://www.theluckysoldier.it/en-us/categories/streletsmini/page-13/
https://www.theluckysoldier.it/en-us/categories/strelets/page-25/