Odd timing, but in the last couple of days, two Friends of Unfair Park have inquired about the for-sale sign in front of the Church of Scientology Celebrity Centre on Buckner. Yes, it's for sale -- has been since 2006, matter of fact, says Perry Jones of J&B Commercial, who's repping the 1940s manse. He tells Unfair Park this morning the property's "been under contract a couple of times" -- once, with a developer who'd hoped to scrape the property and rebuild -- but that would-be buyers have