You may have already thought about this , i try to find out if there was any post but wasn't able to find.
It should be easy enough (not for me but maybe for you) to create a sort of belt between north epiphany pec, a board with one or more epiphany chip on a board, south pec and on board epiphany (in my case 16).
I don't know if it's possible but i imagine something similar to a token ring network (as a conceptual work flow).
Just evaluate and take me to reality if i told something wrong.
Thanks