Approximately how much hose would i need to redo my whole fuel line system?

also, i am a little confused about the AN sizes....i have a fpr with 2x -6an inlets and 1 -6an outlet. and wanna do the parallel setup that reted has setup but need to know the amount of hose to get. http://fc3spro.com/TECH/MODS/FUEL/pararail.jpg

and how exactly is that hose supposed to attach to the fuel pump with those wierd fittings.

i don't know much about the fuel lines other then the stock size is 5/16, any help is appreciated.

 

still haven't found any info =( think 20ft will be enough? or is that too much.

 

Basically its the length of the car X2.5 and for the fuel pump either you slide your stainless line over the original outlet on your tank, OR drill and tap 6an fittings in, Put 6an fittings on that end of line, Connect them, do a little dance and enjoy a very pretty, professional fuel system. OR get a fuel cell with 6an fittings already on it, and pre-loaded with a aeromotive A-1000. then you just win

 

The X2.5 bit comes from Feed line, one length, return line, another length, all the lines going to the rails, and to the FPR half a length. maybe a bit more but hopefully not. oh and dont forget your fuel filter, thats an important one.