That's a good card, EVGA is the same brand I use, I have one of the TI versions from a couple years back. I still think you are imbalanced between the graphics card and processor. You are looking at a super overkill on processor with an average level graphics card. I'd recommend starting with an i5 processor going up to a 2080 graphics card and seeing how comfortable you are with the budge there. If you have headroom, I'd consider an upgrade to the i7 proc, and again see where you feel you are on budget, if you still feel like you have more room, I'd upgrade to the 2080 TI, before I consider the upgrade to the i9.
I run an i5 w/ my 1080 TI card, and I don't think I'm suffering in games at all. An i7 wouldn't hurt, but I just don't see any need to spend the extra couple hundred or more to upgrade to the i9, you just won't see a big difference in game, where you'll probably see a difference from the 2070 to 2080 if you want to run high settings. Also, I see you are looking at skylake processors, they are an older generation right now, again backing off the i9 and going up to the most recent generation may give you a better bang for your buck, but as I said before, any way you decide this, you are going to end up with a great system.