Nothing wrong with being cautious but in your instance you've got more than enough room. I'm actually quite surprised at how much clearance the case has for a Mid.
Honestly I love my case. I've only owned 2 PC cases (Other than premades back in the day of HP and Compaq Computers) first one was a Rosewill black hawk for my first build around 2012 with GTX 680 and this one I had since 2016, really a great case lots of air flow. I feel like a V2 of this case would be amazing its so nice and has great ventilation too and is so easy to clean.
Yeah I try to be cautions considering the investment it takes to build a new system and the hassle of getting the right parts so everything works on the first try of the build. I was a little nervous because 2 reviews for the MoBo said they had issues with CPU Cooler clearance for the MoBo but luckily one of the reviews mentions the Air Cooler he was using (Forgot the exact model) But it was a Noctua Air cooler and I did small conversions using Google from mm to inches and turns out the Cooler Master RGB Cooler I want is smaller than the one he was using so it should fit just fine.
Can't wait to start buying parts and building next week but I think it will be worthwhile to wait an extra 2 weeks for black Friday sales and Cyber Monday. Probably best to wait.
EDIT: wanted to add bought a GTX 1080ti in August (Coming from a GTX 970 to an RTX 2060) And I am really liking it. Going to be upgrading from my 6700K to a 9700K Shouldn't be outstanding difference but is gonna be fun building a new system.
Most likely will upgrade next summer if RTX 3070 is announced and possibly the new Comet Lake CPU's. I just didn't want to wait that long. Its insane for gaming at 1080p there isn't much difference between the 9900k and the 9700k so I decided to go for the 9700k