Denny,
I just made brake lines up for my 4t6. I bought 25' of line. Don't know if they will leak as I don't have it all hooked up. I've heard here that you could bend up your lines and take to a brake shop for flaring but I double flared my own. I think I will take them back off and wire brush with a brass wheel and clear coat. I played with a scrap piece and it looked nice. Pics below
Dan
http://rides.webshots.com/photo/2141598560071274430agewIk