I am far from an expert on this but I have a lot of hours logged in VR, it's my understanding that VR mods are usually not very good and even official VR versions of flatscreen games are often borderline unplayable without heavy modding (looking at Skyrim and fo4 mainly with that one) all that being said I don't think the playerbase for VR mods of flatscreen games is large enough for there to be any standard recommendation on this and your best bet is to just fiddle with it until it looks okay to you and keep in mind you'll probably have to fiddle with quite a few things to get it working properly.
although I will reiterate that I may be very wrong about this and if someone comes along with better advice I wouldn't be surprised.
eta: this does not apply to Dr beef mods! I don't even consider those to be mods with how amazingly they transform the games to work in VR, that is all