Elegant Suit (No Offhand Holster) 1.0.0

Adds John's Elegant Suit to your saved outfits. Does not require you to replace your save game.

This is the closest I could get to the original look using SP clothing only.

To install:  - Download Save Editor ( https://x3t-infinity.com/RDR_SE )
  -  Open your save
  - Go to Character -> Custom Outfits -> Saved Custom Outfit One from the drop down menu 
  - Click the gear next to the drop down menu -> Replace Outfit -> Select the file -> Save your changes -> Done.

You should be able to replace any custom outfit with it but you may have to change the name of the file, I haven't tried it myself.