All Gate's hoses are good for 20% Ethanol and the outside layer doesn't deteriorate either. The standard hose doesn't cost much/m off the reel at my local car parts place but mine is all 8mm. I believe the 1/4" and 3/16" are cotton braid but in this case it wouldn't put me off.
I fitted some r9 years ok. Still seems sound with no cracking. I did ordeR some more last night though, and a new inline filter. Although, 6 or 7 years ago, I took my tank out and cleaned it right out.