Ok, I will make it a bit bigger. I think what makes the proportions odd is that I have just one floor/story, but with two levels of elevated ground. The wooden floor were the presses are placed is a little higher than the stone floor. That's why I need the ramp in front of the door. Then there are the two roofes with different elevation. As a result the bigger wing has a height of something in between a one-story-building and a two-story-building. I will figure out a way to fix it. But I don't want to loose the general layout, because it's kind of unique. Different from most of the other buildings, the olive presses are the main part and should somehow be in the middle. So it's not a closed building with props around it, but rather an "open" building with the main props right in the center.

ok, will scale it by 0.5 or 0.25, I'll see. I could exchange even more ao space for little more geometry: The ground floor is one big quad face, where only the sides are visible. I could spare the unvisible part inside, but this would mean 4 quads instead, so 2 tris -> 8 tris. I think that's worth it.

Nah that's actually pretty common in games to have a smaller second floor.  Something we don't depict though is buildings usually had small doors because they kept the heat better that way.

No text sounds like it's failing to find a font for your locale. Do you know which one it is ? See    Gpu skinning is a new option that was enabled by default. You should try to switch from opengl to vulkan first then if that doens't fix it disable gpu skinning. That will fix the issues.

You should yes Hopefully the added triangles won't be too bad.