Don, you can get an aftermarket bimini for almost any boat. www.Overtons.com is a good place to start. You'll just need to take some measurements and decide what material you want.
BTW, Welcome to Team Crownline. I see this is your first post. Hope it's not your last.
O'
"Little Mascara 3"
2003 266BR,496 MAG w/Bravo III