Just a bit interesting that you already have a can of paint, did you buy it for the truck? Is it pretty new and do you have enough? In my bodywork experience, it is better to mix paint fresh and use it quickly to avoid contaminates, etc.
Also assume you have done painting before, prep is the critical step because any imperfections are magnified many times by fresh paint. And a home compressor isn't recommended, you need to use a professional one with water filter, etc. to keep crap out of the paint. Shoot one spec of dust or droplet of water and it is all over.
Color choice, all you. Send a picture when done.
Good luck.