Do I need fasteners to bolt this on, or are they included?

The bracket comes as an assembly only — no fasteners included. You'll need OEM or equivalent bolts to secure it at the factory mounting points. Check your service manual for the correct fastener spec and torque specification.

Can I paint this before installation?

You can, but it's easier to install first, then touch up any paint afterward. If you do paint ahead of time, mask off the mounting surfaces so bolts seat flush without paint interference.

Will this fit if my bumper cover is already cracked?

This bracket supports the cover structure — it won't repair cracks in the cover itself. If your cover is cracked, you'll likely need a new cover along with this bracket for a clean repair.