It was sort of buried a couple of posts ago, and I did send an email to the winner without response as yet, but thought I'd more prominently post it again.
Random.org says it's Lucky #7! Dcalaneknits, look for an email sent on March 24th (Re: Keep Out) (check spam or junk folkers) with a request for your mailing address, and I'll get a copy of Keep Out!: Build Your Own Backyard Clubhouse: A Step-by-Step Guide in the mail to you!
Thanks everyone, it was a blast to read all those comments and memories about clubhouses and forts.
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I'll give it a little time, and possibly a third try, but may end up visiting Random.org again!