I also think I had to insert :51472 after the unique ip in this step?:
rpcuser=long random username
rpcpassword=longer random password
rpcallowip=127.0.0.1
listen=1
server=1
daemon=1
logtimestamps=1
maxconnections=256
masternode=1
externalip=your unique public ip address
bind=your unique public ip address
masternodeaddr=your unique public ip address
masternodeprivkey=Result of Step 1
Make sure to replace rpcuser and rpcpassword with your own.