Its not really Leather its more Pig skin, and if you or your wife can sew, you can use your sewing machine, pig skin is user friendly. you just need to buy a Leather needle for your machine. You may find most of the soft parts are achievable.
I did make my own but i don't have the time to commissions as I have my hands full making the furry creatures instead. but I'm more than happy to lend advice.