The computer that you linked to from Amazon is a gaming computer. There are big differences really in a gaming computer and a design computer. There have been several discussions in the past on this and how the computer needs for design work require a different "focus" of hardware on certain aspects which isn't always the same as with computer gaming. Now, that's not to say that CyberPower computer isn't powerful enough to do what you are wanting necessarily, but it may not have the right quality and performance components where you really NEED that performance. For example, most gaming computers focus their largest chunk of cost on the graphics card. In a RIP production computer, that's not near as important as say a solid storage system based on high quality hard drives and plenty of RAM.
I own a custom computer office and we do quite a variety of systems including the design systems for my dad's sign business. I will echo what others have stated above and suggest you contact to Casey at Signburst if you are looking into new systems. They have the right quality and the right hardware support to make for a professional workstation instead of a semi-decent gaming rig. It's best to spend a little extra now and get what you want and what you need then have to spend it all over again all too soon because you didn't get what was right the first time!