Himel did a similar back with The Ross MK1, but it looks a little different in the Shinki Suede.Don't let @Monitor hear this
Sounds like a great project. I love the design of the hooch hauler and I think using front or backside of the leather will look awesome with this design.
What about the centre back vent? The hooch hauler has an open centre vent and I think giving it the two tone effects will look great, but I'm not sure how that open vent will work with such soft and pliable leather. It might be prone to overstretch and stay open? Like on this vintage jacket View attachment 256030
Im not sure whether that's a real issue though. I had this Ralph Lauren jacket which was made of very flexible, almost spongy cowhide. It had an open centre vent which didn't stretch or stay open at all. View attachment 256029