Get Gmod Store Builder here : https://osgmod.com/gmod-scripts/3918/gmod-store-builder

Gmod Store Builder is a complete Gmod addon, which will allow you to build stores, quickly and easily. Configure several blinds all different from each other in game with it.
It also contains a currency system allowing it to work with DarkRP or without DarkRP installed or any Gamemode.

Free updates for all my addons and scripts.

Feature of the last update added in the version 2.3
Add Wallet System
Add Chat Command : !wallet
Add Console command : wallet
Drop the amount of money you want on the ground.
Possibility to display the money only in the wallet instead of the HUD for those who want to lighten the HUD.
Give the amount of money you want to the player in front of you without spawning the money on the server. (Secure method since another user won't be able to steal the money on the ground, and also more efficient since the server doesn't need to spawn the item)