North Creek Big Kat (link below). Buying the kit and having Lee Taylor do the boxes would likely have you out for less than 5k, plus an afternoon for assembly. I've not heard the Big Kat, but I have the smaller Eskas, which work quite well a few inches from the wall. John
http://www.northcreekmusic.com/Kitty/Big_Kat_Info.htm
http://www.northcreekmusic.com/Kitty/Big_Kat_Info.htm