Got the rest of the major bits for my scratch built scraper.
Added a sliding ejector too and went for pneumatic cylinders so both the upsie downsie (tech ag term) and the slidery bit (also tech ag term) work. Still waiting on some more valves and a yellow pump to finish the plumbing but it is structurally done.
Tractor with quad road type tyres
Bought some tractor treads which work goodly, I was a bit concerned they would not fit with the tractor build but all good so four more will be ordered.
Scraping...
Half ejectoring
Quad tractor tyres...
And on the wall of shame in my study where it will live.