I can get 6990's for around 150 - 250
free electricity and gpus at half price, such a deal!
so if this takes you two weeks to order the parts and configure, you have maybe 60 days to mine before the block reward drop. then after that bfl, basic, deepbit reclaimer and asicminer area all working on asic designs. even if just one of them comes even close to their target gpu mining is done -- even with free electricity.
are you thinking investors will see this as being a good use of their funds?