Calculation of additional costs for undeveloped land, second row with long access path

For me, apart from the aspect of securing the property, this sounds significantly more complicated, expensive, and pointless. Or am I overlooking something?

In the end, it doesn't matter whether you buy now and the surveying/division is done (and paid) afterwards or vice versa. The procedure, as planned, is a common approach.

Oh, thank you very much for the quick response! Then I am relieved :)

The advantage of the variant would probably be that we would already have the property secured

What you have, you have. Life is becoming more fast-paced, packages are supposed to arrive within a day, including the Asian ones ;) And yes, it is real. Each of you can continue, make progress, keep planning. You could choose the notary as buyers!