Suggestions for Nut Pine trees, Zone 7b, Piedmont?

Looking to plant a screen of pine nut trees in my area, but I haven't found one that'd be happy yet in my climate.  Zone 7b, AHS heat zone 7/8.  Hot, humid/dry summers, Wet winters.  Nut pines either seem to want hotter and dryer, or colder.  Colorado Pinyon and Mexican Pinyon seem like potential candidates (from here - http://tcpermaculture.com/site/2013/11/13/permaculture-plants-pine-trees-for-pine-nuts/z0), but they're both right at the edge of tolerating conditions here.

Maybe the Torrey pine? It's from coastal southern California, where dry summers are guaranteed. I'm trying a couple here for that reason.