Most concrete companies have a 2 yard minimum. However, there are companies that charge you by the yard and they mix it right there on the job. I call those guys the "Willy Wonka Concrete Factory" because of the way the machine sounds when it mixes. " EEP OOP AANT!" They pull right up to the base and let her rip. Rebar, wood for bracing the base, soni-tube should all be considered as well as an auger truck to dig the hole. Get quotes for your materials first and then you can base your labor on your experience with this type of work. Driving a ground rod to ground the pole does not provide a low impedance path back to the source to open the OCPD in case of a fault. With a properly sized equipment grounding (bonding) conductor, a ground rod at each pole can be used, but I see no advantage to driving one at the pole except for lightning protection.