I am trying to replace the donut spare with a real spare on my 2010 Caravan. to get this the shop wants the following info, which I have no idea where to get. Talked with the dealership, but they just type in the VIN number and the computer gives them the appropriate part numbers.

proper diameter (this I know is 16"
width
offset
backspace
hub diameter

Tried searching here, but I could find nothing for 2010, and didn't know what years are appropriate.