[TES III MORROWIND MOD REQUEST/HELP] -- Merchant's using alternative currency

[ShadowOfYourPast]

Hi
I'm trying to make a mini mod, for the purpose of kinda putting things from other mods in one place, for convenience for one, among other reasons that just feel like they fit with how my game is set up...

Specifically I'm trying to mod Yagram Bagarn of the Corprusarium into a merchant,

But here's the thing I'm struggling with,
I don't want him to use gold.
I do not want to spend gold, or get gold from him as a merchant.
I want him to use dwemer coins. How do I do that? Or... given the forum topic "mod ideas" I guess I'm asking instead, could someone make a mod like that for me? (I just need a basic framework, him as a merchant, using the dwemer coins of his people instead of imperial gold 'septims'. (Preferable MWSE compatible, and without any master files besides the base game, I can add everything else on top of that myself later.)

That's all I want.
But I know it's harder said than done, and I know morrowind in general is an old game and not many people even play it anymore, much less mod for it. Regardless I'm hoping to find someone looking to dust off their old morrowind modding skills and try to meet the challenge.