If ODM has it they will ship to your destination in FL at less cost than driving there from your home location. (they have shipped several parts to me in FL recently).
If ODM does not have it you could try National Recovery in Liberty, NC, about 20 miles south of Greensboro off of US421. They have some Airstream parts trailers, but you would have to go there to make sure you get the correct part.
Since ODM and National Recovery are not on your route to FL, you might want to call ahead to DonMar RV. They have some new parts and they have several used/parts Airstream trailers on their lot. They are right on I-95 at SC exit 141.
265 Puddin Swamp Rd
Lynchburg, SC 29080
2014 Silverado 1500 5.3L maximum trailering package (yes, I'm towing the 34')