Making an E-commerce site like CyberPowerpc.com

Hello!
I am starting up a computer assembly business with some of my friends and I decided that WordPress was the best software that I could use for creating a website (because I have no prior knowledge of creating websites. I’ve downloaded lots of plugins to aid me in doing this and all in all the website I’ve made has the potential to get close to what I want. I made a few test products and most of the functionality that I need is there, but unfortunately not all. There are some small things that could be improved such as putting names and prices next to the variation swatches that I’m using and those are things that I do need to have done, but a much more pressing concern is that I have no way to run compatibility checks! This is very important for computer assembly because people come to my website, they choose the parts they want in their computer, and they tell me to build it. That’s a pretty good idea, but what if they add more graphics cards than the motherboard allows, or the wrong CPU for the socket, or don’t have enough wattage to support their computer? I need to somehow make it so that certain “attributes” of variations can not be used in the same variation product, add some sort of wattage counter where each “attribute” increases the amount of wattage depending on which “attributes” you choose (they aren’t all the same wattage), the amount of wattage needs to be checked against the amount of wattage their power supply supports, and putting the names of the product and the price difference next to the swatches. Ideally the end website will be as close to https://www.cyberpowerpc.com/system/CyberPower_Z97_i7_Configurator as possible. If anyone knows how to do this stuff or what software Cyberpower used to make their website, then please contact me at the email:
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There isn’t really much on it because there’s no point in putting time into something that I will have to redo.