I recommend building one as well as it’s a fraction of the cost of a pre-built setup and honestly it’s not as technical as you would think. You can google and youtube all the info you need. Usually people are more than willing to help you setup a good parts-list to conform to a certain budget. I’ve seen many people ask on Steam’s forums for the specific games that I play … and I’m assuming people on the UE4 forums would be just as helpful.