John Feng wrote:

I have a 1 year old 30" Bies. commercial grade fence system that
I want to replace with a the Bies. 50". I'm looking to sell or trade
(with cash) for a used 50" Bies.

The rails are made from readily available common stock. Why not just buy
the steel angle and rectangular stock and make your own rails.

--
Jack Novak
Buffalo, NY - USA