FTO Fuel Line Replacements

[rmaxix]

I am in the process of replacing my brake lines on my '96 FTO, and the fuel lines are looking worse for wear so I figure now is as good a time as any to replace them too.

Normally there are some good online sites with info for FTO owners, but i can't find the the fuel line diameter that i'll need. I could wait till i have removed it and then measure it but i always like to have replacements ready beforehand. Anybody know?

Also what should i use as replacements, could i get away with using copper, which is what i'll have for the brakes?