Question: should we recommend establishment of a Chapters Network

The question here would be, what are "chapters issues"? To me, there are only "chapters issues" because we keep on thinking chapters vs foundation (or chapters // (parallel) foundation if you want to be less "confrontational"). My take is to say, there are only "organisational issues" and those should be tackled with all Wikimedia Organisations, not by the chapters in their own little corner, nor by the foundation on its own. As for the question of "one chapter one vote", it is probably a whole strategic process into itself ;). You're thinking representation. If there is representation, then this "representative" body must have some kind of final usage/power/strength, whatever you want to call it. A chapters network to makde decision that noone is going to apply is probably useless. Hence the call for making sure that all parties with a stake in those decisions be represented and that decisions made in turn apply to all organisations represented.