I need a little help,
Can anyone tell me what lengths of what color stripe vacuum lines are need to complete a headlight vacuum harness? I have most if not all of the connectors, but am unsure what to order. I see all colors are available at $3.00 pr foot. Is this the best way to get vacuum line? seems awfully spendy, but what isn't with this hobby

Just don't want to buy 4 feet too much, or 4" too little
Thanks!