You don't know who will install the kitchen. Delivery and installation are carried out by subcontractors. It can happen that a few unskilled workers come to you, two of whom barely speak German and one almost not at all. Then it becomes difficult with all work beyond the standard. Maybe they will also say that the installation of non-IKEA dishwashers is not included in the price. Before placing an order, I would clarify this in advance and have it confirmed in writing if possible.
The Siemens folding hinge is extremely expensive and cutting a front to the correct dimensions is problematic if it is not a smooth front. If this is done at all during installation, don’t expect the cut edges to be neatly sealed. If the processed fronts, for example, swell, IKEA may refuse warranty, even if they are responsible for improper installation. I would also clarify this in advance if necessary.
A large capacity dishwasher from BSH without a Vario hinge can be installed if there is about 3 cm of free space between the top edge of the dishwasher and the countertop, or if it is filled with wood. The front is then mounted so that it aligns at the bottom with the adjacent cabinets and protrudes above the door at the top (Stefan method).
If the money is not enough, I would keep washing by hand until I have saved enough to buy the right dishwasher. The cheaper devices are also better in quality. For example, the SX63D002EU has a plastic bottom inside, the SX76P030EU one made of stainless steel.
