[Ban, the long out you showed (glass shade), is it available in 3 or 4 foot? I think it'd look much less "commerical" if it was shorter, perhaps twin.
They used to do a square one, but I think that's discontinued - might still be examples sitting on shelves somewhere though.
http://www.thornaydinlatma.com/pdf/INDOORCOMMERCIAL/SurfaceandSuspandedLuminaries/Less.pdf