Looking for Answers about Nikon Inc. R1 Wireless Close-Up Speedlight System?

I must be misunderstanding you question, you do not need a SU800, yes the built in flash will fire the remote flashes as long as you set them up in the D800 menu. The D800 has the equivalent of a built in SU800.

You do NOT need r1c1 (specifically, the SU-800). The built-in speedlight on the 7000 will activate SB-R200s, and so only the R1 kit is needed. The ring light will work with the D7000 too. (By the way, ya gotta love that 7000!)

In command mode you can set the camera's in built flash to set off the flash so that it shouldn't really effect the image. When in the command mode menu, set the built in flash mode to --, this will allow you to set off speed lights. Remember that the flash has to have line of sight to activate the speedlights. You can also use a radio trigger like the Pocket Wizard (there are other cheaper options) to set off a speedlight or studio light, generally they have a longer range and you can use them over a much greater distance. Hopefully one Nikon will introduce a radio trigger into the camera and have an inbuilt radio trigger/receiver in their flashes like the Canon 600ex rt (though at the moment the Canon receiver is very expensive at the moment and of course won't work on Nikon Cameras).

I might be missing something, but reading Nikon's descriptions, The three seem admirably compatible.