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Small Spiral Staircase to open loft area (approx 2.2m high)

I'm looking for a spiral staircase made of steel with wood overlay treads (approx. 2.2m in height) for access from an open living area to a loft area. The site visit/quote would need to be performed sometime between 10-14 September and the installation to be performed between 22-26 October. I am very grateful for any recommendations and would consider DIY kitset also.