72 ntn. 1 inch thick at the handle, straight taper to 1/2 at the nocks. Width 1 inch wide center section of about 12 inches. then taper to 3/4 about 12 from the ncoks, from that taper to 1/2 wide nocks.
You can safely narrow the outer limbs to 3/8ths wide once you have perfect string tracking.
Hickory 3/16th thick. The rest ipe.
An elliptically added reflex of about 1 1/2 inches works well for your form.