Thinking might be a little low even just with soft and LPS.
CL are nice but you do have the noise associated with the pumps though the smaller Reeflos (I'm using a Dart on my CL) are rather quiet. If you are thinking CL even if not using OM products look at their
Pix section for layout ideas.
High flow PH might not be that bad though, specially if noise a concern, look at this excellent
thread, Nilco16 had started with a CL then moved to PH (starts around post 98), part though again if doing a CL don't go to massive on a CL pump specially if you're planning on having it in the living room (Greenspotterpuffer had similar problem).