All of those should be fine, except for the Nexus kit - I've seen IMC working with HP Comware and ProCurve kit, and Cisco 28xx and 29xx routers and Cisco IOS switches.
IMC 5.2 (released a couple of weeks back) now supports the Nexus 1K. I don't know about the Nexus 7K.
If you haven't already, I would recommend upgrading to IMC 5.2.