I think it's the Italians that are confused about what they are trying to sell you
Looks like a three quarter system from those drawings then. You only keep your header pipes. It will be difficult to tell if the centre stand will work unless the manufacturer knows or unless someone with such an exhaust has a centre stand or tried it and failed can tell you.
Have you considered a GPR exhaust? They are very well made and you can use a centre stand with them. Just find some pics of Locky's bike if you want to see what they look like (search in the Exhausts section.) They sound glorious too, I bought myself one to change my Scorpion can out and I'm very impressed with the workmanship.