I bought all my aftermarket stuff from right stuff (https://www.getdiscbrakes.com/) and I had the same problem (Same proportional valve) and none of my lines fit either. They told me that if using the aftermarket set up I had to get the lines that fit and work with those aftermarket proportional valve which I did and everything fit. I had already bought new lines from them but none of the info was stated anywhere. So I actually replaced my lines twice. If you do this do not buy the stainless. While nice to have, it is too hard to get into tight places. Also, get the front to rear line that is two piece as it is a lot easier to get in then the long one piece.
