Overlapping network multicast routing

[Brad12]

I have multiple overlapping radio man nets, which require to be in the 10.0.0.0/8. is it possible to route multicast traffic to and from each site with overlapping networks?

[MHM Cisco World]

Run l2tp between sites  if you use to extend l2 over l3 device 

MHM

[Ramblin Tech]

Can you elaborate on what you mean by "overlapping networks" and the problem you see it causing for multicast?

[Brad12]

I have multiple remote sites connected back to a hub using NHRP, each remote site has a man net connected all of which require a interface to be 10.0.0.0/8. I cant subnet or it breaks the end user devices connectivity. I need to pass multicast traffic to all remote sites to each 10.0.0.0/8 network. 

I did a minimal test using L2TP yesterday with success how ever that was only point-to-point and only one remote site, today I will be trying test in realistic parameters.

[Ramblin Tech]

Sorry Brad, but NHRP is but one of many enterprise-oriented protocols with which I have no experience. I tried a quick search to see if DMVPN could be used in conjunction with NHRP to provide an overlay IP multicast service, but it is not clear to me that it can. Maybe somebody else lurking out here can help with the overlay.