I also plumbed the gas tank. I had ordered a new fill hose and 25' of fuel line. If I had known what a pain crawling up in the nose under the from deck was going to be, I would have done this BEFORE putting in the deck... lol
Not sure if it is standard, but when I got the boat, the old fuel line was just run naked under the gunwales, hung with coated aluminum hangers. I just happened to have some 3/4" pvc and decided to run it as a conduit. I think I feel a little safe with the hose not out where it can be knicked or hit.