The motors in Dryers are typically the last things to go, however the belt that goes from the drum to the motor is suspect to failure because of the heat of the drum during the drying process. It's not to technically difficult a job, however does require time because several frame supports have to be removed to get the new belt around the drum.
There are a couple of places that sell appliance parts in St. Augustine, Jax, and Daytona however I don't know of any here in Palm Coast.
A simple check via the internet can sometimes lead to both a diagram and parts list and with that the proper belt can be ordered online.
I have replaced the belt on ours 3 times in 12 years and it keeps spinning. I always curse because it is a simple job just frustrating and tight quarters to work in and I always end up with a few cuts and scratches.