Man of many hats
Definitely NO builder's grade window. Look in your local yellow pages and get some quotes for at least a mid-grade window. You'll be glad you did in a year or two. Research windows on the net as well. Not all windows are created equal. I've dealt mainly with vinyl windows, so I have little info to offer in the way of aluminum, but there are some decent alm windows out there. And they are not on the shelf at the big box stores, but may be available through special order.