Petrol tank liner

Happy New Year to all........

Thinking of getting my '36 Norton's petrol tank lined. I used POR15 on a car tank a few years ago & did it myself & it seemed to work very well, but took ages to do as it took so long to clear the inside of fume/residue,so Iwant the Norton's tank done professionally.

Hasanyonea recommendation for an"ethanol-resistant" liner thatactually resists ethanol, &/ora good/quick firm who will do it for me?

Thanks. Sue, the Biker Newbie!