Well, I bought a mega, wifi shield and the 20A power supply based off the equipment list. Looking forward to trying it out!It could be that easy... kinda. Only real issue is we don't support the UNO any longer because it has limited memory capacity.
You could replace the UNO for a MEGA. Would basically be a dead swap (note the MEGA is a bit bigger). A clone is fine... would cost you about $12-15 from an online retailer. An evaluation of the BruControl software could tell you what you need to know.
We're here to help you with any questions or concerns along the way!