Here is a top down picture of my call guts.
Pedestal Height 1/4
Pedestal Over Diamers 1 3/4
Pedestal Inside Diameter 1 7/16
Pedestal wall thickness 5/32
Soundboard to playing surface distance 1/8
Overall Call Height 11/16
Overall call Diameter 3 11/16
Playing Surface ledge width 1/8
Sound Holes Diameter
Middle 3/4
Outside 1/2
Bottom Thickness Center hole 1/8
Bottom thickness Sound Hole: Inside 1/16
Bottom thickness Sound Hole: outside 5/32
Playing Surface Slate
Diameter 3 15/32
Soundboard Glass
Diameter 2 31/32