Vladimir D from Vladivostok in Russia kindly sent me a mail on my previous line in the Long Bogo. He notes that white has a playable game after 8...Bf5 9.h3 Ne4 10.Nxe4 Bxe4 11.Ng5 Bd5 12.h4
In my earlier post, I only considered 10.Qe1 ( 10.Qe3 pretty much is the same ), but it seems that the suggested continuation is better.
After 12.h4, black has 12...h6, but 13.Nh3 h5 ( 13...Kh7 is not so good as it allows 14.h5 g5 15.Bxg5 hxg5 16.Nxg5+ with a strong white attack ) 14.Ng5 (=).
Also possible is 12.h4 e6 13.Bd3 (=)
And finally 12.h4 Bxa2 13.h5 (=)
So it seems like my concern about this particular Long Bogo line is addressed - thanks Vladimir - great to see that chess players in Russia also read this blog !