Which ARC Linestage?

I am considering selling my SP16 and going with preamp separates to run with my 150.2. Unfortunately, a LS26 is out of reach and I'm not sure the LS17 is going to get me where I want to go. Are there any standout linestages from ARC's back product catalogue I should consider? Which of those from the LS-5 forward (if any) can really stand up to the best of what is currently out there--or at least would be better than the LS-17 or my SP16? I would run the phono with either a GNSC modified PH5 or PH3. Am I moving in the right direction? Should I even consider a SP17?

Thanks!