Gmc,
Sorry for the delayed reply. Been on a cruise.
We bought some nice drapery material and insulated blackout lining at a local fabric store that specializes in such things. My wife sowed up the curtains. I also replaced the tracks with longer ones so the curtains cover the back end of the windows, and we installed velcro on the back end of the curtains to keep them closed.
The new ones are nicer in all respects. The blackout lining really blocks heat as well as light, and the fabric is much nicer than the original.
There is a post on the forums somewhere with pictures. A search for things I have posted should find it.
Regards,
Randy