I would start out with a used gun, one that is easy to work on, and a reliable one at that. Pick up a new, or like new mask, don't skimp on that - if you can't see, you can't play effectively.
You are jumping right into an electro - is that what is important to you? Is it the looks of it? Are you playing indoor speedball, or in the woods?
Plenty of options for you, personally I wouldn't purchase that gun, but I like playing pump. When I want to shoot more paint during a game, I go with a Mechanical Automag. They are fairly simple to work on - depending on the model, very easy to clean - as in submerge the gun in warm soapy water and cycle the gun a few time kinda easy.
You can find such a gun on here for far less than what you are willing to spend.