Like I said before, it's mostly trial and error. Sometimes things you think will work, won't.
In my stairway, I experimented with several different fans and placement of said fans. Most configurations caused a nasty air dam which absolutely killed the natural convection current.
While stove placement is important, don't focus on speculating the fine tuning. Place it where it's gonna work/look best in the room it's going in. Between the windows will look and work great, IMO. Start from there, and once it's installed, then you can worry about finding out what works best. The saying "form follows function" is generally a very good rule to follow, but in this case, I don't think it's the best train of thought. It's not like you're putting it in the basement, or firing it backwards into a closet. In those, or similar, situations, it's clear there is a better option. What you have planned will be highly workable.
While it's excellent, and necessary, to weigh all your options, and plan carefully, try not to get ahead if yourself or over think things.
When you figure out what stove you like, get it installed, run it, and see how she does. Always remember, it's a giant space heater.