
Mopar is now selling the basic Wrangler pickup conversion kit. It's part number 77070049 and includes a 44-inch by 50-inch steel bed, inner and outer metal bedsides, a removable fiberglass hardtop with a sliding rear window, a fiberglass bulkhead, and pieces to convert the Wrangler hardtop to fit. Kit Price $5499, assembly costs extra, available now.
http://blog.chryslerllc.com/blog.do?p=entry&id=1467
Update: Watch a time-lapse movie of the bolt-on conversion. I think the kit pictured above is the weld-on kit.