just to clear up.... steel fuel line (covered for its protection) through the cabin is fine as long as there is no connections anywhere in the cabin

i bought fuel line from pirtek... if you know the length you want they will flare the ends for you (i measured the stock pipe roughly with a tape measure and it worked out fine for me)

and you can bend it up by hand without a problem

so no tools required for that

use the stock line as a return pipe