Thanks for the response!
I completely disassembled everything, re-applied new thermal paste, and carefully installed everything again.
Auto Overclocking is disabled, and for testing purposes I've set the CPU fan curve to be at 100% any hotter than 40C.
Unfortunately my CPU did not come with the stock cooler :/
This time around I'm idling at 32C with standard sidepanels, and 35C with the DAN window kits.
When under any heavy load, I'm now reaching 85C with standard sidepanels and 92C with window kits.
So it seems this complete disassembly and reassembly actually made a difference! Maybe the cooler wasnt sitting properly or just needed a new application of thermal paste.
I'm still a bit concerned about hitting 90C+ with the window kits :/
The standard sidepanels are extremely close to the CPU fan, thus causing turbulence. This is making the fan sound extremely loud...
Whilst using the window kit, the fan is completely quiet (window kits gives an additional few centimeters between sidepanel and fan), I've heard others have this issue with the C7 on the v1 case.
Again, thank you for the support! Any additional tips are welcomed 
