That was a great suggestion, however, as per my understanding, this equipment is not good enough to mine Bitcoin, but it can be a good option for altcoins like Litecoin. Also, I think the RAM should be 8 or 16 GB.
Forget many altcoins as well - scrypt coins like Litecoin have been ASIC-dominated for a few YEARS now in particular and the widespread proliferation of ASIC for many algorithms over the last year has killed GPU mining for a LOT of algorithms/coins where GPUs used to be highly profitable.
Mining rigs don't need a ton of ram - 16GB is definitely overkill even for an ETH rig that is using the old-type "build the DAG file on the CPU" type miners, though it MIGHT need 8 - and any other GPU-mineable algorithm isn't going to need 8.