Go to Wikipedia and check it out . . . Jeep J8 is a military quality Wrangler Unlimited, built in the middle east since 2008. Also available in the US for so inclined.
And wait - the 2012 Wrangler catalogue shows a picture of a pick-up truck package available to modify the Wrangler Unlimited.
yup, it's available here. turns your wrangler into a 2 seater truck with a 5' bed. uses the two panels in the front that the hard top would use, and a modified hard top for the rear, so it's still a convertible.