Weird, Scoop usually shows up pretty high in searches like that and they've covered it a few times.
they referenced a few Lost valley sales, but I didn't see a description of the pedigree. Obviously I just didn't look hard enough
I have floating around somewhere a Lost Valley catalog. The collection was headlined by very high grade early stuff - things you just never see. Complete sets of Wow, What a Magazine 1-4, very early (single digit) Detectives, stuff like that. Al's pricing was exceptionally aggressive, but he sold most of the big ticket books very early on. I know its heresy, but I would argue that on the VERY early stuff, the Lost Valley collection is equal to or better to the Church books.
I have a bunch of Lost Valley books, they're quite nice.