Help with Golden Forge

Hey, i have searched for some help with this before posting and i couldn’t find anything that was helpful.

I currently run golden forge on my server and was wondering if anyone has a quick guide/some useful lua code to add a tab in the shop where i can add skins. So someone would save up points and spend them on a skin, upon equipping it would set their player model to the model selected.

Any help would be great thanks!