It seems the real question you need to answer is what your long term goal is and whether or not this position will help you get there.
And, is money or happiness more important, and how do you define happiness? Short commute, more time with family, better salary and potential for higher level responsibilities?
Look at Bob Hurley and compare his career to Dan Hurley. In the end, who will be the happiest? The one with the storied career in high school or the one with a much higher salary? Maybe each is as happy as they could hope to be even if they use differing measuring sticks.
If this job gets you on the path you want, but the 50 minute commute and the salary reduction, for a year, are too much, you may not be sufficiently committed to achieving your goal and should reconsider it. Only you can answer that and it's never easy to answer.