I have a 5K+ and like what it adds to sim racing (rF2 is all I use). rF2 is typically an FPS hog but with your 2080ti you'll be able to have a nice experience. I have a 1080ti and am able to do well at 72hz screen rate. I can't imagine going back to my old Vive or CV1. I second most of what Iron Wolf says, most importantly the FOV which adds to your situational awareness (that's a biggie) and also sense of speed. I do not have any issue with the stereo view. Other than the comfort issues which you'll need pursue with whatever solutions work for you, I think the edge warping would be the most detracting issue of the HMD. It's at the far edges and is most apparent when physically turning your head which we don't do that much of in racing, other than occasional quick glances to see if someone is alongside or maybe a quick look at a mirror. I have to say that in the single-seater open-wheelers I mostly race the warping never crosses my mind. But its there. The sweet spot is bigger than both my old Vive and CV1 and the resolution and screen-door is muuuch better.
As Iron Wolf said, you must get a good head strap and I would say add a counter weight. (I think a counterweight is essential for any HMD. I think the Pimax weight is actually on par or lighter than your CV1.) The "DAS" to which Iron Wolf refers to is the Vive Deluxe Audio Strap and I'd say it is essential.
All that said, be aware the thing is quirky. If you read the Pimax forums you'll get a feel for it. It runs the full range of "I give up, I'm ditching it" (tiny minority) to "It isn't perfect but I can never go back". For what it's worth, I think it really enhances sim racing and I'm in the latter camp.