I would leave the body wrap to the pros and just do the Ceramic coating. Many reviews on youtube for a crazy number of products. It will require some elbow grease (expect to spend an entire day) and an environment out of direct sunlight (garage).And besides the obvious joke of cling wrap, what would those be?
You'll also want to wash thoroughly and do a clay bar treatment.
I'll spend the extra $ as the pros will do paint correction prior to applying.