OK, I have got it! I ordered castration bands and 10 thous thick Mylar. I had some 80 thous kydex on hand and cut the Kydex 2 1/2 long and 5/8's wide. For the separation in the middle, I tried several things for the correct internal distance for reed to resonate. What I came up with that works and produces a great sound, almost cottontail like is a half inch piece of the 10 thous mylar glued at each end on both pieces of the kydex. This leaves a 20 thous opening for the reed that I cut about 400 thousand wide and the same 2 1/2 length of my kydex.
This is a great call homemade and am going to experiment even further with a more narrow reed to up the pitch and vibration. I do not know how to post a picture or I would. Very happy with this close range homemade clone of the original. If someone can help me, I will include pics.
Note; Use the smooth side of the kydex for the inside of the call and rough side out.