Thank cleemed! There is a reason it looks like your big Unicel body.
The body is the propritery property of Carter Chevrolet in Olka. at this point. They designed it along with the engineers at Unicel and Unicel makes it for them in their Toronto Canada facility. It was 1st decide to be the exclusive use for FedEx Home Delivery, but after the 1st run of them, FedEx didn't take all of them so Carter started selling them to anyone and everyone to move them, offering them to the Chevy dealers around the country that dealt with the "regional" FedEx depots to get them into those areas and also allowing them to retail them...Carter chevy has sold a few of the bodies though Unicell to other companies, but at this point, anything sold and manufactured has to go through Carter...that will change shortly as it is my understanding that in time, the design will fall to unicell with a royality being paid to Carter and then they will be available just as a Unicell body available on any "pool" chassis...now that is how it was explained to me, I wouldn't say that as "gospel", but its how I understand it from people at Unicell.
I have spoken to the Unicel engineering team leader that worked on this body to get additional info on making some modification to the inside as well as the parts people to get a list of certain parts that have a "history" of having issues over time (alot of the oarts in the unit are common to all unicell bodies) and I can tell you that the Unicell people have been great to work with as has Josh at Carter and the Salesmen at the dealeri am picking up the Van from in Ohio.
Now if they could get it here from Toronto , then buffalo NY a week or 2 earlier....