Look at your rig to see how it is mounted. I had the fuel lines on mine crack and leak and thought it would be a tough job (with a full tank). Took me an hour.
Mounted with two straps. I got a piece of ply (about 2'x3'), two jack stands and a floor jack. Undo the mounting straps and lower until you can get at the lines (set it up so it tilts down a bit). Then replace all of the lines Jack it back up and redo the mounting straps.
The original hoses lasted 20 yrs on mine, so, I just installed std fuel line hose.
my two cents
charlie
2006 Toyota Tundra Crew Cab
2003 Skyline Nomad 24ft Fiver
Me and Wife
Maggie the Old English Sheepdog
Re: dropping the tank.. I very seriously doubt you have an access panel over the tank, but some vehicles have 'em. (1993 Mercury Tracer for example has one)
Just so you know.
I've always had to drop the tank when I was replacing fuel lines.
Nothin adds excitment like something that is none of your business John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377