#1 relay - http://www.amazon.com/SainSmart-101-70-101-4-Channel-Relay-Module/dp/B0057OC5O8

#2 switch - http://www.amazon.com/Omall-Simulated-Roller-Miniature-Switch/dp/B00STL21R2

#3 diodes - a diode arrangement that concentrates 7 switches down to 4 wires, one 3v power and 3 returns.  cannot handle simultaneous inputs.

#4 shift register - https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&langId=-1&productId=49681&storeId=10001

#5 pico - solder female header to the pico, and male header to the project board to allow quick swaps w/upgraded code

#6 lcd - sparkfun 5v 16x2 color backlight lcd w/serial backpack

#7 usb - http://www.amazon.com/Spark-Wireless-Universal-Charger-Compatible/dp/B00DWGLMEW

#8 cable - cat 5e

#9 cable - long coiled handset cable, recrimped ends for proper rj11 connection