L2PT and Discontiguous VLANs

So heres the scenario here.

[CAT3750]==[Internet]==[CAT3750]

I want to RSPAN traffic from one side to the other. From reading up on L2PT, it looks as if it only supports sending CDP, STP and VTP.

Asside from a L2 MPLS VPN, would there be any other way to tunnel my traffic between the switches, as it appears L2PT wouldnt support RSPAN traffic.