I did the same thing, and Wolfgang installed it too.  Around $250 cash back
in the '90s.  Don't know if he'll do that anymore, but you can ask:
www.shadyboy.com  He's just across the border in Crescent Beach, BC.  Don't
forget your passport or enhanced driver's license to get back in!

Stuart

From: Tom Buese [mailto:tantonbz@gmail.com]
Sent: Friday, April 05, 2013 9:05 AM
To: Stuart MacMillan
Subject: Re: Interesting Thing About My Westy...

I got my Shady Boy years ago by contacting the guy in BC directly.  It was
much cheaper & faster than going thru a middleman.

YMMV,

Mr. BZ-get the optional poles, drill holes in bottoms of them & anchor poles
to the ground, FWIW.