You're looking to spend a lot of money. Columbia is ridiculously expensive and UNE is expensive too. You should really figure out where you want to apply and call each school to see where they stand on online coursework. If a school takes online lectures and labs, save your money and just do the labs through UNE (or some other less expensive online option). If they don't accept online prereqs at all, then you're plan won't work anyway and you'll be flushing a lot of money down the toilet.
Whether you can get away with doing your post-bacc at a community college or whether you need a fancy post-bacc or SMP depends largely on your academic rigor. Someone with a 3.9 cGPA from a decent brick and mortar school isn't going to have to overcome the same doubts about ability to handle rigor as someone with a 2.2 cGPA.
As an anecdote, I recall a former Army officer who took all his science coursework, including labs, through UNE while stationed in Korea. He was admitted.