Implement a flexible FPS weapon system in Unreal Engines Blueprint Visual Scripting

Hello Freelancer! I am in need of a basic yet flexible and easily extensible weapons system for a FPS game in Unreal Engine 4.9.2. This weapons system should be made completely with blueprint visual scripting. I am looking for a basic affordable implementation that i may modify later - outsourcing this is to save me time. What you will need to provide is a system similar to many popular FPS's out there where the player has several "slots" for weapons, may switch between currently equipped weapons by scrolling, and they may swap same-slot weapons for each other that thy find on the ground/wall/etc.- EX. you can swap a shotgun for a rifle but not for a pistol. Weapons should be implemented as a base blueprint for each slot that i may then create children of to create additional weapons for that slot later. Placeholder assets are fine. Please put the name of your favorite video game at the beginning of your bid!