Looking for a cutaway that looks like this

[Oregon Bill]

My 2nd great uncle Ben Burks looks to be wearing an unshaped Boss of the Plains hat and a woolen cutaway coat with side pockets with the collar turned up and buttoned at the neck. He has his trousers tucked into his boots. Anyone know of a source for something like this coat?

[Major 2]

Try Jean at https://www.jamescountry.com/aboutus.html

and or https://ushist.com/mens_1800s_clothing/q-1404_victorian_morning_frock_coat_cutaway_civil-war.shtml

[Black River Smith]

Try River Junction.  https://www.riverjunction.com/