Apparently you really can't come up with anything on the buses or any better evidence than the short statement of Col. Lunev. This surprises me because I really thought that you might be able to come up with a "smoking gun" type of evidence. You are the one making the dramatic assertions. Why can't you show where any of the billion dollars went? I should not have to prove a negative, that not even one penny was spent (which I do not claim).
You made a specific assertion about the funding of some items required for large antiwar protests. Did you read this in a book, or on the internet, or hear someone say it in a lecture, or did you just make it up?
The trouble with lots of links is that often a lot of them are of poor quality or they all trace back to one untrustworthy witness, document, or article. But, I'll make you an offer. You don't need to post the links. Just give me your search terms. When I have time, which isn't now or maybe even today, I will carefully go through the links that come up on google from your search terms. (Please try to make it less than 10 pages of links.) If I find any hard evidence that you are right I will admit it to everyone on this thread. If I don't I will state why I don't think anything is there. The time this will take will depend on the number of links.
It seems like major KGB funding of Vietnam-era antiwar protests would have been explored in a book if evidence for this existed. Someone here would then know the title of such a book. Lunev's book came out 5 years ago, so why hasn't anyone followed up on his statement if there is something there?