Arvin, I just do a 4” rectanglular handle, no shelf, and 2-1/2” or 3” fades. But your penciled in fade looks very close to what I do on all my bows. I’ve used that up to 57# at 28” bows from 63” to 68” with no problems. I think your in good shape.
Here’s the snakey bow that I haven’t finished yet.