hello, I am looking to make/have made a briefcase of sorts, I have been looking for one for the last couple months and I am not really satisfied with the options out there, either the materials suck or the design sucks or both. looking to have it made from waxed canvas, cordura, and leather. But I am not familiar with sewing material this thick (or too much really). It is not a terribly complicated bag, but the materials are quality. If you can aid me in this I could probably compensate you for your time.