that gives me an idea.. i have 40 of the gridseed a1 miners that were 24 mhs litecoin miners collecting dust.   they had 10 cards mounted in a configuration of  two boards per row and a heat sink.. http://cryptomining-blog.com/2675-a-new-gridseed-scrypt-asic-miner-might-be-coming-out-soon/  wish i had a better  pic for ya off hand.. i think i might be able to fit some gpus in there instead..