Fuel line replacement

[radek at istar.ca]

Hello listers.

I have to replace a rusted metal fuel line and the local parts store offered me a choice
of either buying a 25ft roll of fuel line or a 3/8" brake line.  My question is:  are
brake
and fuel lines essentially the same (metal tubes) or is there any difference that would
make them incompatible?
Are there perhaps any plastic lines now available that would be a good idea to use to
replace the whole line, from the rear of the car all the way to the engine compartment?
If I use the brake line, I'm planning just to replace the rusted section and connect it
to the existing line which seems to be in a fair shape with a piece of flexible fuel hose.

Thanks to all for your ongoing support.

Radek
88 90Q