Corsair 750D newb build questions.

Hi I am new to PC Building. Im planning to use Corsair 750D with ASUS ROG HERO VII Motherboard. I have few questions with regards to that:

1. The Case comes with "built-in" standoffs, is that correct? So the only thing I have to do is screw motherboard onto these "bumps"(standoffs).


2. The middle standoff is replaced with guide pin, so I just put it through motherboard designated hole and leave it? (i.e. there are no screw/screw caps involved(?))


3. I am only planning to use one SSD and no other HDD's. What would be the best place to put the SSD? I am thinking about using the "Vertical" SSD Caddy which is behind HDD cages.


4. Is it good idea to remove two HDD cages if I don't plan to use them?


5. I imagine removing HDD cages will leave "empty holes" that could be replaced by fans (2x 120MM AF Fans). Is that a good idea?


6. If I place intake fans on bottom I would need to provide some sort of air-dust filter, because case doesn't supply one. What filters would be best? The DEMCFlex are super expensive..


7. I am not sure how to plug-in the USB's that are in front of case panel. Does the case come with USB 3.0 and USB 2.0 Connector Module?


8. Is there anything important I should know about this case?

Thank you