Wasteland Imports - Goodies from all across the Wasteland... Mod
MODWell, then you might be interested in Wasteland Imports; Making Fallout 4 more Fallout by seamlessly adding in items from previous games.*Formerly known as Mojave Imports.
The last update (1.52) aims to make Wasteland Imports a bit more "vanilla" friendly by removing some of the changes that was done during the development of the mod (notably, it removes the rebalances that done to the vanilla items).
This mod is not compatible (and will need a either a dedicated compatibility patch, or a merged or bashed patch) with any mods that edit the same "Leveled Item", "Vendor" or "Container" lists.