5'er is out of the question unless you commission a modified truck. I know there is (was?) a company here in Utah that makes pretty nice looking 6-door 8/9 passenger trucks. You just took them the 1-ton of your choice and $10-15k and they made it for you. But that would be a monster to drive around as a daily driver.
A 1-ton van (350/3500 series) would be a pretty good choice. My wife and I are not "van people" (to quote from the Seinfeld episode), so we drive a Suburban for our 4 kids. But it is hard to beat the versatility and space offered by a full-size van, that is for sure.
