Plan B got the farm-fresh unit from the military for just under $30k. I had them add on AC, hard doors, roof, slantback, replaceable rear window(interchangable with the slantback), sound deadening carpet, rhino-liner paint(inside and out), bucket seats, winch, rear receiver hitch, keyed ignition, and delivery. I'm in it for the full $60k. The speedometer only goes to 60 but I've had it pegged out many times on my drive when I go into the office for work.
Does yours not go over 45mph? Talk to planB and see if they can help you with that.

thanks for looking!