Brief update:
We are in the "final" stages and will start flowing in about 4 weeks. Since August, we have been able to save around 45,000 euros thanks to the sale of some items, 4 tax refunds, bonus payments, optimizations, and savings efforts, which can now be reinvested in the kitchen, interior furnishings, and unforeseen (actually luxury) expenses. We could also use another 20,000 euros to really realize everything one envisions (window seat, more expensive staircase to the attic, steel swing doors, etc...) but currently everything looks pretty good.