I would suggest finding a different inspiration, first. Second, tweed and flannel suits are mostly gonna be available online, esp from places like SuitSupply, StudioSuits, and Uniqlo. Contrasting tweed vest, and nice wool overcoat are both easy enough to find too.

I had it custom made for my birthday FOR A REASON 😁😁

Thank you!! I adore how the mustard pairs with this suit 🥰🥰