Hi Larry and everyone else on this thread.
We had looked at this briefly with the previous generation of Raspberry Pi and found it a little too slow to practically run DashBoard and its UIs. As I mentioned above, the amount of effort involved is not trivial.
DashBoard is build on top of Eclipse's Rich Client Platform and, as such, requires binaries for each OS/architecture it is to support. By default, Eclipse does not generate compatible binaries for the ARM processor. That said, there is (or at least *was*) a version of Eclipse that has been ported to run on Raspberry Pi.
We had limited success with taking the necessary binary SWT (Eclipse's user interface layer - where most of the OS dependencies are) plug-ins from the version of Eclipse installed on Raspberry Pi and replacing the binary plug-ins used by DashBoard with them. It also needs a compatible Java 8 SE build.
Once compatible plug-ins are found, the remaining hurtle is to launch DashBoard from a java.exe command line as its native launcher will also be missing for ARM.
Suggested searches would include "Port Eclipse RCP Application to Raspberry Pi"
Another option we've looked at with significantly more success are things like the Intel Compute Stick or Lenovo Idea Stick. If you go down this route, you'll want one that has at lest 2 USB ports or built-in ethernet for best results.
http://www.intel.com/content/www/us/en/compute-stick/intel-compute-stick.html#DashBoard