How many completed sales produced the 24-day estimate, and does “moving” mean an accepted offer or the completed transaction? Those timelines are not interchangeable. It would also help to know whether the country homes are within Berlin or in the surrounding market, because combining them could...
I’d also separate “can afford” from “comfortable every month.” Run the budget with higher maintenance and household spending, then see whether you can still save rather than merely make the payment. If buying uses nearly all available cash, waiting could be sensible even if prices rise, because...