Bzzzzt!
You want cheaper than the "finest premium lumber" from the BORG at some fraction of whatever else they sell. Sorry but that's *ALL* they sell - cheaper than the finest premium lumber. You can't buy what they sell for some fraction of what they sell. It doesn't work that way.
Evidently you're older than my father (who died in 1965).
I'm supposed to know why?
Well, Woodcraft sells some pretty nice stuff, as does Rockler, and Highland. If you didn't come from oil money, I'm sure there are premium wood outlets within 500mi of you.