There's another way to look at it. Again assuming it is reported accurately, of all the laundry list of things to think about, particularly at this stage, when you are working towards a sovereign country, why would setting up an army be high on the list? Perhaps needing one once your are sovereign (although I'm still not convinced, assuming a legal and amicable split), but why now? It would be astonishingly stupid, but setting up a non-state army while still technically part of Canada would be an insurrection.
Maybe they want to channel the American Revolution, but even they must read polls.
Even their asking for a line-of-credit from the US seems odd, given that their social media rhetoric says they will have money coming out of their ass.