Do I need any hardware to install this?

Handle mounts at factory points, so fasteners should already be present. Confirm bolt condition before install—if yours are rusted or stripped, have replacements on hand.

Will this work if my car still has a key fob?

Yes. The keyhole is just an opening; removing it doesn't affect your locking or entry system. You'll use your fob or keypad as usual.

What if I need the left side too?

Order the front left handle separately. Both are sold individually to let you buy only what you need.