XelaNull/FS25_UsedPlus ? reverse-engineered prompt

Build me a Farming Simulator 25 mod that turns the game into a more realistic farm business. I want a central finance screen where players can manage vehicle loans, building loans, land financing, leases, cash loans, and used equipment purchases all in one place. It should include a credit score system that changes rates and terms based on payment history, plus trade ins and repossession if players miss payments.

Please also add a used marketplace where AI sellers list vehicles with different conditions, and where players can inspect equipment, negotiate prices, and sometimes get better or worse deals depending on weather and their past behavior. Vehicles should have a hidden reliability and maintenance state, with diagnostics and breakdown style malfunctions that make neglected machines feel risky.

Keep it multiplayer friendly, support multiple languages, and make the whole thing feel polished enough to plug into FS25 as a mod. If you need current FS25 modding details, look up the latest docs online and follow the existing project style.