As
Silverstone's April Fool's case turned out to be no more than that, I went second hand and found me this thing.
The case is Chieftec BE-01B-SL-B. It meets my requirements of 2 5'25 bays, as well as CPU height and video card length.
I compared it to my Fractal Design Focus G Mini and it's only larger in one dimension (obvious one being full ATX vs mATX for Fractal). I don't need those extra slots, but I'm ok with the footprint.
Pressing the plastic in front reveals front panel. Unfortunately, being rather old case, it only supports USB 2.0. I'll need to look into options of upgrading it to 3.0 somehow.
Case has vents on sides for ventilation of CPU and GPU. PSU fan is in, so it effectively functions as top mounted. I might cut a hole in a side, drill new mounting holes, install a filter and flip PSU to isolate it from airflow later. Then again I have an i3 12100F + GT1030 and PSU is Cooler Master Gold 550W fanless, so it may not matter much.
Case comes with a 350W PSU. As mentioned above, I already have one to use, so I actually asked seller to skip it in package and knock off a little from asking price. He said no to the former, but still did the latter, so meh.
Anyways, voltage selector clearly shows this is rather ancient PSU.
Closer shot of the PSU. Obviously ancient also by cabling, as it has more Molex than SATA connectors and no PCI-E connectors either. But should be good enough for basic IGP PC, where I might end up using it later.
With this case I actually can use other one with remaining spare parts to build a whole PC and gift it to my niece.