Can you sell the case itself?
I missed this question earlier in the thread, it comes up a lot, however not currently interested in selling just the case.
Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.
All of the 470/480 units use 1300 EVGA PSUs for exactly that reason, the efficiency cost really works well for them.. The pictures in the thread are from the tuned 380 units that didn't need the additional PSU overhead... I have a functional setup with server PSUs as well, helps me shave the component cost some more and lower unit cost some.. I haven't moved out on it yet due to supply chain unpredictability with the server PSUs but continuing to work it..
I can sell units with less GPUs but generally after people look at the numbers they end up back at 8 due to the cost per Mh..