I personally think midrange gaming rigs will preserve the most value and allow for the quickest resale.
I lean toward gaming rigs because in the plan the gpu's are only to provide an income while we wait for asic.
We need to retain as much value as possible in the resale to place the second order.
This seemed counter-intuitive at first, but makes good sense. The whole point is to use them as a stop-gap and try to get going again after as fast as possible.