I haven't spoken of this one in public, well, not the chassis anyway. This was to be one of my big challenges away from "boxes" of signal boxes and try something a little different. As I have a liking for the sand trains due to my work on the Churnet where they used to operate I decided to look at what had run before the PAA wagons I had done. To that end, one of the first i came across was the MTV/Zander wagon, built of redundant TTA taker chassis in the 1970's. My initial thoughts (and research) showed that the TTA had been originally done by Airfix as one of its kits (later Dapol) so I acquired one of these kits of ebay for around £8 and started drawing the top body, only then to notice that the chassis in the kit contained 2 large ribs to support the tank which would have to be cut off. Didn't really want to do that.... So I set to with the ruler and micrometre and started to copy the Airfix chassis design and draw up a replacement.. I feel I made good progress, but then I lost my mojo when I came to the brake rigging. I had planned to go with a friend to see the sole surviving example at the Battlefield line railway, but then covid struck. I also found that I was looking at an injection moulding that was probably older than me and starting to show its age in detail, So I wanted to make something a little more 21st century.. but then interest waned. So here is where we are at so far. Most of its done bar the brake gear. Quite pleased with the detail, no idea how it will come out though. And finally with the top on. anyone got any plans of similar brake rigging ? cant see on photos close enough to work it all out. Its done in 123D design, so probably limited by who can help on this unless I export as a different file type, but I'm willing to share this model with others in return for a little help. Andy PS. The Airfix kit is also still unbuilt!