They are about installing a big brake kit on e39 BMWs but the techniques re replacing the lines with stainless will be about the same. You will need in addition to the lines a big stainless steel washer for each line with (if memory serves) a 1/2 inside hole diameter. This is necessary so that the SS line doesn't pull through the mounting bracket. At least I found it was necessary when doing this job on my M Roadster.
Brake Install Instructions Need4Spd
'99 M Roadster/Imola Red/Strong Struts w/Body Brace/Sharked/StopTech SS Brake Lines/Zimmerman Cross-drilled rotors/Mintex Red Box Pads/Rogue Eng. Tranny Mounts/Royal Purple Synchromax Fluid/Supersprint DTM