Although this unit is only 10 years old and what I consider energy efficient, the windows still are significant areas of heat loss. I have been cold next to the dinette window and looked into getting some additional drapery rod pieces. I called the company that was used for what I already own (used at former rental) and was told that they no longer sell directly to the public but would take my order and contact information and pass it along to someone who would be able to help me. I never heard back.
Recent shopping on line gave me the idea to see what is available as an alternative. I ended up with 2 super clearance panels from JC Penney:
The LL was here for a repair and complimented me on the drapes. I guess we have similar taste.
Cost: Approx $15 for the rod, $38 and change for the drapes. The additional replacement parts that I explored from the drapery company (to use with existing, second hand Waverly drapes that I bought at least 15 years ago), would have cost me even more.
So in the end, I have an updated look for less cost, the comfort is improved in the dinette. Both the rod and drapes could easily be reused in a future home.