86.6 board feet of lumber. Hard to tell what kind of oak it is. Doesn't look particularly like red oak to me. Just guessing white oak might be worth $350 but finding someone who is willing to pay that might take some time. I look forward to seeing what the other guys have to say about this.
I don't know the value of it, but I'd pay $300 for a piece that I can get a perfectly flat on both sides board 1-1/2" thick, 13" wide, and 8' long out of. I've been looking for that specific board for over 6 months for a repair on a door to an 18th Century church. I only want old air dried, and oak would be just fine.