Are there any mods which heavily fall under the game setting and are very lore-friendly? No I don't want any exceedingly modern weapons or armour. Only attempting to go for Fallout Universe specific mods, especially damn high resolution ones. I know there're several 1 and 2 based mods for New Vegas but was wondering if there were any for 3. Of course stock replacers but better texture resolution is a plus.
Already found some for the PipBoy 3000 and been currently looking for stock replacers for the weapons, clothing and armours. Creatures would be a bit more difficult to look for since the ones I've seen don't appear to be stock replacers and change said creature too much. More of a selective pick and choose mod user instead of the bulk ones. Absolutely no dice for Fellout since I consider it non-lore friendly.
Just rebought Game of the Year Edition obviously for PC when I sold the 360 version a few weeks ago. I'd love to play New Vegas again but I'm patiently waiting for the Game of the Year Edition.

This might have been better placed in the Mod Detectives thread, but whatever.

Your best bet in this regard is probably FWE (Fallout Wanderer's Edition) simply because it's actually been made stable and works well with most other mods. It covers pretty much everything except maybe weather and monster diversification. Classic Fallout Weapons, integrated into FWE but also on its own, would be a lighter weapons-only classicifier. Enhanced Dynamic weather would work, as it's a modular deal, and customizable.

Now, if you do a search for Mez's List, there's a lot more there.