I have white fiberglass diamond plate in my engine compartment and wouldl like to paint it to match the red on my boat, any ideas on what would work good??

use a multi part paint. wither liek an awgrip or imron

or liek ppg paints. The catalyst activated stuff is WAY nicer to paint with

House of Color singlestage red..............u-tech 3.8(cheaper than the rest).......awlgrip.......just about any urathane or polyurathane('scuse the spellin'). will work just fine