Your options are limited by the short season and lack of heat. Warren 346, Campbell NC4, and Lucas are best options. I have Meat in my list but not much info on traits. It is from O’Connell Island, Burlington Iowa so has some potential. Your best option for getting a tree would be to contact Ernie Grimo and/or Dave at Rockbridge. I don’t think either has it currently but both could graft a tree next spring.
You can see pics at Pecan - #712 by Barkslip .