Good luck and with all seriousness. I spent 3 years looking for one and never found one for sale. Saw one on California in/around 2010 and talked with the owner but he had no interest in selling. Can’t say what engine it had. We ended up with a Provan Tiger. They are out there, just difficult to be in the right place and time to get it before someone else. Good luck!
Most likely you won't... I chased these for years and quit looking... We went back to the alternatives. You can purchase a Brand New Class B+ or C, have it shipped to Quigley and have 4X installed and save yourself 75K. Quigley has put 4X under the Ford Transit, and the new Nissan Van. Sportsmobile uses them. DG