I'm guessing it'll sell for $10- 15,000 depending on overall condition and history.
Which is a shame. There's so much earning potential left in that truck.
Also for local cartage work.
You'll most likely pay taxes on the sale.
Being over ten years old I don't think FedEx will lease it from somebody else.
Not sure, you may have to ask.
Look in the classifieds for similar trucks.
It will probably be a cash deal or owner- finance.
Good Luck.