How many miles on the PT? How long do you hope to drive it?
Since you don’t have an interference engine, I’d probably skip the timing belt for now.
I’d shop around for the work that you know needs to be done. Get a quote that includes the exact work to be done so you can compare apples to apples.
Most of the quote is for labor. Parts can be purchased pretty cheaply here
http://www.rockauto.com/catalog/x,carcode,1398753,parttype,5759 $200 or less for timing belt & water pump job.