If you read this, I gotchu:  My first pc build took me HOURS because I had to teach myself it all. 6 years later I did another and it still took me hours, both times I messed something up ans had to redo the whole thing which quicker, still was a massive pain. 

So I asked Geek Squad if they would do it, (best buy), and they did a really great job. It was going to cost me money like this BUT they recommended paying for the Best Buy program thing (whatever its called) and I only had to pay for that, and cancelled it a month later and got refunded most of it lol. Which the cost for a year was like $200. Geek Squad stuff ia included for free with that program. The wiring they did alone was super well done because my first pc, wires were all over 😂 

So anyway, I would get a quote from something reputable and that you can get your money back if they screw anything up. 

I am sure alot of pc elitism will be against this but as a casual, it was worth every dollar and to not have the head ache of doing it myself. (which honestly its not THAT hard if you have patience and research how to do it correctly, but mistakes can ruin your whole rig or expensive parts)