Yes, it uses a standard Bowens Mount which is fully compatible with the Amaran 100d, 200d, and 600 series lights.
Most rental units include a fabric honeycomb grid to control light spill, but please verify with the specific rental kit listing.
Only if you have a Bowens Mount S-type bracket (sold separately) to hold the speedlight; it does not mount directly to a flash shoe.
Yes, but due to the 120cm surface area, it acts like a sail in the wind; ensure you use heavy-duty sandbags on your C-stand.