At the request of a fellow NGDF member, I am posting some pictures of the tender frame (at least what can be seen as the tank is on top of it).
The image above was taken late 2009 when a short DVD was being filmed about the restoration.
The front beam, with drawbar and all the hardware.
The rear truck on the Engineer's side.
A detail of the middle of the frame on the engineer's side.
The rear of the tender. The tank is (almost) in its proper place at this point.
More pictures may follow as I find and resize them.
Hope this helps.