Work Truck?

My brother runs a 2-man handyman business and is looking for a new work truck. He needs a locking service body with rack on top. He doesn't need a crew cab, diesel would be nice but not necessary. Do you deal in new or do you have used ones also.
I am trying to talk him out of buying something too old. He doesn't want to over extend himself but I don't want to see him set himself up for high maintenence and repair cost.
What do you have and/or what do you recommend.
Thanks,
Rodney