Jerome, thanks buddy. The door frames are part of the frames that we bought from an auto salvage yard. Our doors are actually side windows from a wrecked conversion van and the windows are in great shape. You can pick them up for around $35 each here.
The first picture below is with the aluminum frame shown with the window. One word of caution, if you decide to go this route, be sure to pick windows that are not convexed. Ours have a 1/4 inch bow which have caused us a little challenge, but we worked that out and it will not be noticeable. Hinging is a little different from regular doors as well as the latch, but the outcome will be worth the trouble. We really do like ours. If we can be any help to you at all just let us know.

I started out with nothing and I still got plenty left.
VOL-N-TEAR