CatsIllustrated has the actual letter from Sandy Bell to the NCAA, among other documents regarding the 500 win matter, via an open records request from Kentucky. This is behind the paywall, I think, and even though I have copies, I will not link them in respect of CI's efforts to obtain them. When they surface elsewhere, we will most assuredly link them for your reading. [UPDATE] KSR has them now.
In particular, the letter from Sandy Bell to the NCAA paints Jerry Tipton of the Lexington Herald-Leader in an extremely negative light from a UK fan perspective. That won't bother Tipton much, and normally wouldn't bother me, because it's Tipton's job to get to the facts, not be a UK fan or homer.
But my reading of Bell's letter suggests Tipton was after more than facts, he was actually agitating for the NCAA to come down on UK. That is startling, if true, and I would certainly love to hear Tipton's side of the story. But Bell's letter seems pretty clear to this reader that Tipton was going beyond reporting on the story to inserting himself into the story and becoming a driving force behind the NCAA's actions.
I find this profoundly disturbing, but I'm trying to keep an open mind and I'm anxious to see others' take when the letter becomes public outside CatsIllustrated.