Are the financial resources really sufficient??

1,000 € installments are quite low for this amount, so a long fixed interest rate period doesn't help either.

Is the house already sold? Is the 80000 profit certain? What about the prepayment penalties for the old loan?

The current house is inherited + paid off and not yet sold. However, there is already considerable interest from some parties. Furthermore, the sale could possibly yield more. Since this is only certain after the sale, I would like to assume the usually lowest value and then be more pleased if it turns out to be more...

In your opinion, what loan amount would be possible with a maximum repayment of 1000€/a and a long term? With such a "rough figure," I would at least have a feeling for what is realistically assumed here...

One calculates round about meanwhile with 500 euros for a loan amount of 100000.

But not for a long time... expect 350 euros per 100,000 euros.

But not for a long time... expect 350 euros per 100,000 euros.

Including reasonable repayment????