If your switch infrastructure is solely two Nexus 5010 switches and two Nexus 2148T fabric extenders, is it possible to setup vPC?

I had tried doing this and seemd to be running into issues with the peer detection.  I have switch SW-A with one attached fabric extender FEX-A and a second switch SW-B also with one attached fabric extender FEX-B.  The mgmt0 interface of each switch connects to a port on the FEX that is connected to the other switch.  VLANs are used extensivley to slice and dice the network around firewalls that are attached to these switches as well.

I don't have my vPC config attempt handy right now.  Just looking to see if anyone knows if it is possbile to set this up if there are no other switches invovled to provided connectivity to the management ports outside of the Nexus hardware.