So I made a lot of progress. in like, its finished. Or at least my part is. I was only going to make the shape and then the client was going to to the painting, leather work etc. So I had to scratch my head a bit and do some collaborative head scratching but I got my cam worked out.
I used the bottom half as a canvas in fusion 360 to get the proportions right. My friend that order this had several other pictures but this was the easiest to work from.
This is my first draft after discussing the proportions and dimensions with my friend. next will be making shure it is ready for cnc (making shure the milling bit can cut the corners etc).