Jerry - Thanks for posting this. I have always been intrigued by electric bicycles but have never owned one. From reading your posts in the past, I know that you have explored the world of electric bikes, particularly folders, and I believe that what you have assembled DYI is an ideal arrangement, preferable to what I have seen available as kits or fully outfitted bikes, thanks to the high value you place on light weight.
Maybe someday I will take the plunge, but until then, I will take vicarious enjoyment from your efforts, and those of others.