Tin Duck compared to Ship John

I’ve always wanted a Ship John Willis jacket, and I recently discovered that Tin Duck Denim Co. makes a trucker jacket that seems comparable to the Willis V2.

I have some questions: Has anyone tried on or compared both jackets? What are your thoughts on the differences, pros, and cons?

I'd like to hear from owners of either jacket about the fit and wear. I'm 5'9", 175 lbs with wider shoulders, and measured jackets feel tight without gussets. Any thoughts?

Does anyone know if it would be possible to get the TD Trucker jacket with a two way zipper.

I understand that most likely if you’re wearing one of these jackets, you’re probably gonna have a long sleeve shirt on underneath it, but I would still like to ask if either one of these liners feels itchy on the skin?