Pretty cool case, eliminates the need for risers, but standard slot spacing has become obsolete.
Many cards are now 2.5, 2.75, 2.9 slots, etc. More flexible spacing would be ideal.
If you could get nvidia 3060ti fe cards you could do 12 no issues.
If you could get nvidia 3070ti fe cards you could do 12 no issues.
Since I am going for 3090 six of them will do just about 1800 watts
and I can do 3 rigs to a 30 amp 240 volt circuit.