Where do I get a diagram of fuel lines

You'll need a factory shop manual for that. Try Ebay for a good used one or Faxon Auto Literature in Riverside, CA for a reasonably priced reprint. They have a website. Hope that helps! Jim

factory manual or haynes car repair manual.

The old ones aren't there ? Lines from auto zoo or nipa will rust out in 5 years , try " linesTo Gocom " Or OEM parts from rock auto . There should be some evidence of where they ran , brackets or something . Good new ones will be pre bent and can only go in one way