I hate to say it but you are going about this in the wrong way. Stop what you are doing.
Define your node with the usrp as 1999 first just as the how2 shows.
Then define your radio node with the echolink connection
When you are ready to have the gateway on the repeater, connect 1999 for rx or tx
*21999 / *31999 and *1999 to disconnect it.
You can not configure these to be on all the time on the same node. Not going to happen.
Sorry, I'm on short time right now so that is the quick answer.