Pretty solid build, my main concern would be the size of the GPU in that case. Technically it should fit, it's listed at 323 mm while the case says it has clearance for 330 mm, but you might want to consider the Sapphire or AsRock models that are listed at the same price since they're a bit more compact. If you take Contramuffin's suggestion and upgrade to the 6800 you'll need to look into a larger case such as these from Cooler Master, Deepcool, or Montech.

If you're lucky enough to be near a MicroCenter they have a bundle with the 7700X, MSI B650-P Wifi ATX, and G.Skill Flare X5 32 GB 6000 CL32 RAM for only $370, $80 cheaper than your current setup. Again you'd need one of those larger cases since that's an ATX mobo compared to the MATX one you have listed. Or there's a bundle with the 7800X3D and a Gigabye mobo for $470 (same RAM as the other combo).

Other than the suggestion to drop from the 7600X to the 7600 I'm not sure there's much you can save on without cutting corners in some way.