doc41 is right stay away from brass or copper fittings. Trouble with a capital T. Most part houses (it they re-ordered stuff when sold) will have dbl. flare fitting steel brake line in sticks ranging from 6" to 6' all you need is a bending tool.
A tip on using a bending tool, cap one end (rubber plug or cap) of the tube and fill it with sand cap it off the other end and use the bending tool. It makes for much cleaner and sharper bends with out collapsing the line. Oh and clean it out well before you install it.