So i eventually made an order, despite the fact the floppy was working just fine, floppy emulator is a way better solution. Just a few days later, the package was here with HxC modified Gotek drive. Special thanks to Acid Mitch.
The floppy is held by these four screws on the bottom of the unit. Remove them.
Now you need to remove the power supply board in order to reach the back side of the floppy drive. And with it being reachable, detach the ribbon and power connector from the existing floppy drive.
Remove this metal frame from the floppy drive. Do NOT rotate anything. Leave the floppy drive aside and take the new Gotek drive and connect it exactly as the old floppy drive was connected.
The result should look exactly like this.
Insert the new drive into the unit, and connect the ribbon and power connector, then screw in the four screws that hold the floppy drive in place.
And here it is. Floppy out, Gotek HxC in.
