I built my King Tour Pak from parts ordered on line. It makes passengers MUCH more comfortable. I highly recommend building it as detachable.Good point, I'll check w/ Znotti's. I'm not sure what their discount is but I get 10% at my dealer. I've asked about the backrest route and she has in her mind that it needs to be the whole shooting match. I think she feels like there is more surrounding her.
When you buy, compare Zanotti's shipping to Lakeshore HD. They both offer 20% off and have great customer saervice, but LSHD's shipping is significantly cheaper, especially on smaller sized items. LSHD also has free shipping now and then. It's worth checking out.