DMVPN Tunnels with two provider and two sites

amb1s1

I'm encounter with this problem at my job. Our sites have a router with a MPLS circuit as primary and a broadband as a backup. We have two DMVPN tunnels one for Headquarters and the other to our fail over. Now we have one site that we are going to setup with cable broaband as a primary and dsl as a backup. Since the data is going over the cloud we have to configure two tunnels for each primary and backup. I would like to know what is the best way to handle this. Thanks in advanse