OK its time to talk about the top panel.
I want to install 3 x 120mm exhaust fan. 2 of them in the PSU thermal zone and the 3rd one removing hot air from HD zone.
Currently there is a factory made 80mm opening with fan fitted.
Initially I was gonna space the 3 fans a little but then I realised that the current opening will be between 2 fans and therefore there will be no actual metal between them unless I manufacture something - yeah right
So I decided to put them next to each other, side to side and use AC Ryan RadGrill template as a guide to cut the correctly shaped opening.
If it does not turn out as expected then I will actually buy the RadGrill and attach it to the top panel.
Because the hole I will make will match the RadGrill shape, should it be necesary, the RadGrill will cover nicely the dodgy work and no one will know anything about it...