Subject question says it all. Who makes an inexpensive casement window, about 36" x 36", with thin frames that will approximate the thin aluminum frames on the original windows on a 1950s rambler style house? I've looked at Marvin (good, but expensive), and the stuff at the big box stores (cheap, but not very good and thick frames). Only other thing I'd like is to be available in a dark color such as cordovan, brown, or charcoal.

thanks