C&D blending tobacco will get you a Picayune approximation but it isn’t easy. For a good bulk burley: C&D Dark Burley or C&D Burley Ribbon Cut. I’m partial to the White Burley too. Potential Picayune recipe:
C&D Bright Virginia
C&D Red Virginia Ribbon
C&D Dark Burley
C&D White Burley
C&D Izmir...