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I've had a look at Goodridge's site and can't see the chart you're referring to. Do you have a link?
Mikenetic-
I may have been mistaken,
Superstar have a chart - http://www.superstarcomponents.com/library/pdf/Hosefit.pdf
On the Goodridge site you just have to search for the model of brake - https://www.goodridge.co.uk/products/mountain-bike-brake-kit-for-shimano-slx-br-m665?variant=31561186247
I think Goodridge have changed the way they operate, used to be if you went onto Chain Reaction and looked at 'Brake spares' and narrowed it to Goodridge, there'd be hundreds if not thousands of items, now there's two.
I'm sure you used to be able to buy every single little piece individually plus there'd be things like fitting kit #1765 and I'm sure there was a chart somewhere that told you what brake and hosing fitting kit #1765 was compatible with.
M_V
Goodridge will be your best bet surely. Just find the correct fittings using charts on their site and then order as many meters hose as you need. On a run that long I'd splash out and get braided hosing to keep the brake feel nice.