At $27k, you should be able to find a clean V10 cargo van and have it converted to 4x4.
I don't know if you've ever driven a Quigley van, but the lack of suspension up travel on Quigleys make for a pretty harsh ride since you're constantly hitting the bump stops. If you get the one you are talking about, I would factor in another $1500 for the Agile RIP kit which remedies the issue.
2005 E350 Chateau - V10 - Agile Offroad 4x4
2012 CTS-V Wagon - For the baby...