We also need a kitchen / kitchenette for upstairs. I'm currently looking for DIY ideas or used ones on classifieds. Alternatively, we could also spend the 4 thousand euros to get one from IKEA. We are torn. On the one hand, it feels like a waste of money because of 1-1.5 years. On the other hand, we cook daily and dealing with the worst makeshift stuff during that time is not so cool either. If it were only 2 months, sure, but over a year is quite a bit of lifetime.
You can also create workspace and storage with a small budget or existing items, there are 100 systems at IKEA and with a bit of creativity you can make it nice. The problem is, however, that we need appliances.
A refrigerator (a freestanding fridge would be possible), a cooktop and extractor, and a sink are the minimum.