I agree with elnan. Custom clothing is a hard road to go. With all the cheap garments available it's hard to get people to pay the price you will need to get to make it worth while. It's important to have a solid construction and fitting background before you start making clothes for others. I used to make all my suits and dresses and tailoring is definitely not easy. I never learned to make my own patterns, but again that is a talent in itself. As is sewing on leather. What is your sewing background?