According to fresh intel yet to be confirmed, the available weekends are the last of july and the first of august.
I am personally unable to attend the first weekend of august, so I hereby voice my support for the last weekend of july, that is friday 26 - sunday 28.
Edit:
HA HA HA! Steven Seagal has apparently gotten cosy with power players in the Caucasus:
http://www.youtube.com/watch?v=ZeUAOqvvOzc