Check the RESOURCES section of this site for a list of parts sources, including RV salvage yards. If none in your area, the larger ones in other regions can usually get stuff delivered to you.
Here are some in FLorida:
Brandon Auto Salvage
[font=book antiqua, times new roman, times]3[/font]159 State Road 60 E, Balrico FL
(800) 282-7462
Bob?s Used RV Parts
High Springs , FL
(386) 454-5733
ARS RV Service & Salvage
Kissimmee , FL
[font=book antiqua, times new roman, times](407) 846-4916[/font]