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Looking for a builder to build shed on site and dig/concrete in piles for a deck

I need one pine shed to be built on site. Approximate size will be 2m x 2.5m, insulated and iron roof, vents, single door. Will be used to house solar batteries and equipment and general storage. Also required will be to dig holes for piles for a deck. Approximately 18 piles to be dug in and concreted. There may be additional bits of work (for additional pay) if the builder is interested. Thanks!