I currently have 8gb 2400mhz b350 ryzen2200g 1tb wd corsair vs550w,etc. But I haven't built it yet. My rx580 8gb is coming in 15days. Is it worth building my pc now whilst using the vega8 graphics then installing the gpu when it comes? I am really impatient and I need to unbox my monitor and see if there is any issue before the warranty and return ends(20 days). My question is, how difficult is it putting a gpu into this already built system? Do I simply remove the case and install or do I have to untangle and reassemble the entire pc? Worth it?