In terms of colour, the Lian-Li o11 dynamic mini

Actually it fits into any ATX case

Unfortunately, I don't know. But I think that if you look at the height and length of the GPU, nothing should go wrong, at least not for me.

There are several possibilities. Also the question of whether you want to install it normally or vertically. There is a filter where you can filter according to the maximum length of the graphics card. The graphics card has a dimension of: L=282 W=117 H=41 mm
Therefore, simply observe these values.