Need fast help printing RGB .pdf to Epson 7880...

I am forced to print a RGB .pdf from Acrobat.

And having trouble understanding  how to set the Destination printer/paper/ink profile, here is my best guess but the blue RGB background is considerably lighter than Photoshop Manages Colors and I need to match Photoshop prints.

Here is my Acrobat CS6 Color Management settings Pro9880_7880 PLPP260 is my Epson profile):

I don't think I have it because the Epson Advanced Color Settings is giving me CMYK SLIDERS (not "OFF"):

All filled boxes and text are sRGB, the .pdf is tagged sRGB, Acrobat Object Inspector confirms the RGB profile is embedded.

I built the original poster in InDesign and Exported PDF (Print).

Any fast help greatly appreciated (I am on a deadline)...