Hey everyone, and all gamers out there who are like me and have a game they need a Cover for

I currently bought Luigi's Mansion from someone and it didnt come with its original cover(insert pic) and i've been searching online on how to print one out and was wondering if anyone can help me figure out the exact dimensions of the art, or if you can do it for me so i can just get it printed.

I dont have no fancy software to create such covers so any help would work thanks a lot !!