So as i said legal free electricity then GO
Illegal free electricity don't go for it.
I already deployed two 5xRX470 rigs on H81 PRO BTC R2.
I know power consumption and as I've said it's not a factor. Just looking for other peoples' opinion on what hardware to get, as it is a big risk to get a loan just for 1000e for someone my age.
You may try 4x7990 on one rig. That will be faster than the 5x470.
7990s shouldn't be expensive atm, they are simply dual Tahitis on one board (280X/7970). You can probably find cheap 7970s online.
The cost of the 7990 is less than $200 at the moment. The hash rate is more than double of RX 480 in ZEC.
However, it consumes more energy than 480.