I’d also avoid forcing completed sales into the same November window as live advertisements if their relevant dates differ. Show the listing observation date and completion period separately, otherwise the snapshot may compare unlike stages of the market.
I’d resist splitting every krone into rigid pots. Keep most of it accessible and use spending rules instead: safety and weatherproofing first, failures of essential systems second, cosmetic work last. The inspection findings can then determine the actual allocation.
Before choosing the interface, what exactly would the area field represent? A comparison becomes shaky if one thread uses internal floor area and another uses a broader listing figure. The price basis matters too. Even an optional field needs a short, clear description or Rome results may look...