There is also another project about DIY bitcoin mining rig and that's name is Klondike. Project Klondike was an open-source Bitcoin miner design originally started by Chris Savery. It was based on Avalon Gen1 ASICs and than was sucessfully finished by a group of people with basic firmware.
Here is the link:
http://projectklondike.org and I'll say that Do It Yourself is waste of time in this situation.
LOL,you'll never get those chips or any chips...unless you have
I still have 1 working Klondike miner & 2 broken ones that could be repaired I think
Mining Bitcoin is over,get some video cards & mine Eth or Zcash with em,MUCH better return than ANY bitcoin mining
Convert those coins to btc if you have too,I just sellem fer paypal balances