Find a truck you like on autotrader.com, run a carfax/carproof, e-mail or call dealership and request high quality pictures, service records, etc., agree on a price over the phone, give a deposit, and fly/drive over to the destination.
I highly doubt a dealer will drive 100 miles to meet you for a test drive.
I highly doubt a dealer will drive 100 miles to meet you for a test drive.