Here's what you need:
ALL of your research materials in one place. Every book, article, that you are going to cite, collected in one place, whether it is an office, a bag that you will take to the coffee shop, or your bedroom. I am not nearly as well-organized as you are, so I usually don't have this all together, but I'm sure you will.
NEXT, you need an idea of how much you can write. Your article will be 7,000 words, and you can write 500 a day. That's 14 days. You have 30 days to get those 14 days of writing in. Take out the weekends, or days when you are too busy teaching, and you should still be able to find about 20 days in which to do that 14 days of writing, with a day or two at the end to shape the article into a final draft. I'm sure you have more self-discipline than I do, so it should be a piece of cake.
YOU will need a time of the day in which to write. For me, lately, it's been from about 7:50 to 10:30 a.m. I'm sure you get up even earlier than I do, so it should be easy for you.
THAT'S all you need, assuming that the article will be the results of research that you've already completed. To have a successful academic career, you need to do this at least twice a year. You won't be writing 12 articles / chapters a year, but "only" 2. Some years, I haven't even written two articles, but I'm sure you will.