Then all is not lost yet. Kitchens are also available for half the price, even cheaper from the Swede. You can also buy furniture secondhand and focus first on the essentials.
Voilà, 15,000€ free equity.
Maybe you imagined it differently before, but what is more important: the Miele oven or the earthworks?
We have also planned 15,000€ for the kitchen (which we probably won’t need, in my opinion) but if push comes to shove, I wouldn’t hesitate for a second to spend every euro of it on more important things. Kitchens are available with 0% financing if the money really runs out.