If cost is not a major issue, you might look at the ad over in the LF Info forum; Eddie Gunks was offering a 2D back for sale as of yesterday.
I saw that last night, but I have spent so much money on other things that I just can't afford it right now. I finally scored a Graflok back for my Anniversary 2x3 Speed. I want to try my hand at making my own back and see how it looks.
If you don't want to stand behind our troops, please feel free to stand in front of them.