How To Sell Kits Using Npcs

I am having some issues, I have made an npc, I have made a kit and set the kit to NpcOnly, but for somereaosn, it says you must find the npc with this kit to redeem, i have read so much documentation and changed my config around so many times, im not sure how to set this up properly,

I want individual npcs to have their own kits available, or have atleast one npc working , is this possible to do and disable /kit for everyone and force kits through npcs only? Thats what this states but it just isnt working... The "Chat" Under shop is confusing to me aswell. I would love to pay someone to help me with this. 

Equipping kits on npcs is no isssue. Selling kits using npcs only is my issue, HOW DO YOU TIE THEM TOGETHER VIA CODE?!

The ID of the npc needs to be in GUI SHOP but im confused as to WHERE and WHAT format to put it in to allow users to access npcs for kits

You should be able to sell kits using the npcs, its just annoying having 3 plugins all made by different people trying to work together

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I can get kits to work when you to press E on npc, but it has to have NPCONLY FALSE to work, which is pointless because then players can just simply type /kit 

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When I do NPCONLY TRUE the kits disapear but the gui still pops up when pressing E on NPC

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When Redeeming it says you must find the npc with this kit

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I have everything linked up including the NPC IDs

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Willing to pay someone to rewrite this