Well after a long chat with one of the suppliers about how these are constructed and being advised that "it's not rocket science and you'll save about £2,500 doing it yourself", I've being playing with Sketchup, as you do lol....

This is based on the 6'6" panels so there's a few lumps of wood to provide a wall bar and purlins with OSB cladding. Might put some T&G over the cladding to prettify it so SWMBO doesnt get too upset... she wasn't too impressed with the idea of concrete though what she thought it was going to look like I still have no idea...

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