Joseph - for UK sources, I’m looking at the following:
£73 - £88 inc from Amazon
2 x £22 inc VAT&del https://smile.amazon.co.uk/25mm-1-5mm-Stainless-Steel-1500mm/dp/B01G1WEJVQ/
4 x £11 inc VAT&del https://smile.amazon.co.uk/25mm-1-5mm-Stainless-Steel-500mm/dp/B01G1WEIGC/
or
1 x £28.60 2m if can be cut -> 4 x 400mm + offcut: https://smile.amazon.co.uk/25mm-1-5mm-Stainless-Steel-2000mm/dp/B01G1WEL5K/
£68 inc VAT&del from eBay
2 x £17 1500mm and 4 x £8 500mm https://www.ebay.co.uk/itm/EXHAUST-TUBING-PIPE-304-STAINLESS-STEEL-HIGH-QUALITY-REPAIR-SECTIONS-/112579591072
£113 inc VAT (del £0 ?) 5m - £18.84/m + VAT + delivery https://www.andythornton.com/stainless-steel-tube-25mm-atsstr25-304-1002
£85 inc VAT & del 6m+6 cuts - https://www.themetalstore.co.uk/products/6m-lengths-304-grade-stainless-steel-tube
£27+VAT+cuts+shipping https://www.metalswarehouse.co.uk/product/stainless-steel-round-tube/
– I’m waiting on a quote from their contact form as the custom cut calculator doesn’t work.
I’ll let you know what I end up with…