Transmition lines, how do i make them?

well i really wanted to make my own lines to learn how but no one around here seems to sell lines in more then 6ft. So i went to http://www.inlinetube.com/ and ordered a set. I did have a question, did dusters only come with 904 stock?

They only have one listing for trans lines for v8s and i called them but the guy didn't know if it would fit a 904 or 727. he said they must of only had one since they only have one listing. :-k