Not sure how many of us will be around during GW, but took a chance and book 1 teetime.
Tsukuba course OUT 08:24,
12.7 11.8kJPY with lunch included, 3some +540JPY
As it's Friday, and early enough, road should be clear - will be leaving Shinjuku 6:30
If we do not meet a minimum of 3, event will be cancelled.