Do I need to paint each piece separately, or can they be assembled first?

You can prep and paint the pieces before installation—this is actually the cleanest approach. Mask off mounting points before painting, then assemble after your finish cures. Alternatively, install first and mask around the seams if you prefer final assembly before painting.

Are mounting brackets or fasteners included with this kit?

The kit includes the two FRP panels only. Fasteners and brackets are specific to your vehicle's OEM mounting points—reference your service manual or contact a shop familiar with this model to confirm what hardware you'll need for secure installation.

Will gap filler or seam tape be necessary between the kit panels and existing body lines?

That depends on your installation approach and desired fit. Factory seams typically use OEM adhesives and sealers—match those for best results. If you're aiming for a seamless finish, work with a shop experienced in body kit installation to ensure gaps are within acceptable limits before final paint.