Welcome to the site. I do believe you have a Quickold standard cooler, great find!
But lots of embossed letters to paint, besides any rust and body work may be a little overwhelming for a first restoration.
While it may look cool restored, Grapette is not as recognized to the general public as Coca Cola.
In fact, there are only 2 guys in the country that I know of, that would tackle an offbrand cooler like this........
Eric or TomFromJersy......both members on this site.
Let us know when your first coin operated machine arrives, we'll help you get that up and vending.