Not quite; For the FOV Type use the default type for the game (Vdeg for R6), but enter a 4:3 resolution like 1920x1440. This is to make sure the FOV calculation for the game is correct.
For the game you are converting to just enter the actual resolution and FOV as you have them configured.
The only reason to change FOV Type is if you want to convert from another type. Always make sure that the "Config FOV" in the output matches what you have configured in the game.