Pair of N-gauge 9' 6" wb chassis

This is an updated version of my existing 9'6" wb 17'6" OHS chassis, made available as a pair. Unlike the earlier model, these chassis have the guides for my coupler mounts, and they have brake levers. They also come supplied with the latest revision of my lifting rapido-style N-gauge couplers (and a spare pair). As on the single model, there are 6-hole disc wheels, which I know won't apeal to everyone, but do appeal to the person who requested it!
Please note that I have not (yet) identified a prototypical 9'6" wb chassis which was 17'6" OHS, but that's not to say that there wasn't one.
There are loads of notes on all my other models about how not to break the axleboxes or the wheels when fitting them, or the couplers if they are delivered frozen in the half raised position with printing support wax.
If anything seems uncertain, please ask me.
Straightforward variations on this model can be arranged on request.
Although there's not much in this model that I haven't done before, it is offered for sale before I've tried it myself.
Please beware of the possibility of a mistake, and don't buy more than one until you've tried it and are sure you want more. Feedback is welcome.
UPDATE 2021-05-18 Made some of the brake rigging a tiny bit thicker in response to complaint from Shapeways on a model having the identical chassis (sorry).