As Dannii said, Basic Screen Effects can work, but (from my experience with Threediopolis) the problem is that you will need to account for line breaks in long text, which is not easy. BSE does not automatically give line breaks. So that is a lot of arithmetic.
Still, if you use shorthand in the status bar, it could work pretty easily. I don't know how much you've played with BSE, so you may know
deepen the status line to 10 rows
Works to get the size you want.
Then you can keep the room descriptions short.
That's the easy solution. A harder one may take more work. But it may be easier to just go with Flexible Windows.