Gosh, no one has asked for this, so I haven't put the files out in public. The boundary file alone is 6 GB - totally unfit for distribution via svn or git. You would also have to obtain the CORE2 forcing files from somewhere. Meanwhile, the latest NEP is NEP6, using MERRA forcing fields and a different vertical stretching (so different ini/bc files). The latest manual has the Arctic case while I am now working on Arctic2. The next manual was funded by the NWGOA domain so should probably include that case.
Instead, you should look through the test repo and see what's there, run some of those cases. Hopefully they have put together consistent and self-contained cases that will run. You can ask about them here on the forums.
ETA: there are some NEP6 files at
http://oceanus.esm.rutgers.edu:8080/thr ... talog.html. We could ask them to put boundary and initial files there if that's what you really want.