Can a common person sand, prime and paint their own rear car bumper cover?

I have a bumper cover that is already in excellent shape. However, it is a dark blue. I need it to be black. It has the typical shiny car finish on it.

Is this something that I can sand off, prime and paint myself somehow? It doesn't have to look perfect because the paint on the rest of the car has actually become dull over the time. The reason I'm changing it is because the other one was halfway destroyed when someone ran into the back of the car and shattered half of it. I know how to take it off and put it back on. I found the old one for about $33 at a pull-it-yourself junkyard. There are no visible defects in it.

What would I need?

Added (1). I should also note that this is either an ABS plastic or fiberglass bumper. The part that attaches it to the car is metal. It came off from a 2003 Ford ZX2, but all of the ZX2 bumpers are interchangeable.

Special flexible primer for plastic, and very even coats, I'd rather pay shop-time.

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