Do I need to paint each piece separately or can I assemble first?

Both approaches work. Painting individual pieces before assembly allows easier coverage and faster drying. Assembly-then-paint requires masking and extra material, but gives you one unified finish coat. Choose based on your shop setup and paint booth access.

What prep work is needed before painting?

Sand the surface with appropriate grit to promote paint adhesion, then clean away all dust and debris. Apply your chosen primer and paint system per the manufacturer's instructions. FRP accepts standard automotive primers and clearcoats without issue.

Will I need additional sealing tape or gap filler between the pieces?

Gap treatment depends on your fitment tolerance and desired finish. Most builds use flexible automotive sealant or gap tape where body panels meet to prevent water intrusion. Check your panel gaps after a test fit to determine if sealing is needed for your specific installation.