I'm late to this thread but I also, back in the day (mid-to late 1990's to early 2000's) would build my own. I think it's still possible and can probably save you a little money if you keep up with the latest trends in processors and RAM and all that junk but I didn't have the interest in keeping up and it all got away from me. Nowadays, for no hassle, you can get a pretty decent laptop, that'll even play games ok, for a thousand bucks. I wouldn't bother with the craziest newest video cards either, unless you are making money with your system (youtube/twitch gaming and getting paid or like CAD drawing or video editing). Get a video card that is a step or two above minimal requirements for VR gaming and you'd be good to go. Mine is a laptop with about the minimal requirements for VR and it runs everything pretty well.
I'm a big fan of the SSDs, if for no other reason than booting times. It's amazing how quickly my pc boots. I have a lot of games on my pc that also load incredibly quickly, with the SSD, and now they are relatively cheap and easy to install. I have probably 5 SSD hard drives just sitting around that have become backups for photos and the like. A laptop sized SSD and a harddrive enclosure, for about 8 bucks, plugged into USB3 is pretty sweet, when it's needed.