Take non-tenure track position or wait?
Sorry to say this, but if this is an adjunct position, I'd advise you to run like hell from it if you have indeed set your sights on a future TT position in a research university. 

No matter what they say publicly, there are many who view a history of adjuncting on an applicant's c.v. as the mark of Cain when it comes to hiring for a TT position, at least in science and engineering. 

I suspect people might be a bit more reasonable in the liberal arts and at teaching focused institutions.