odds are pretty good that Rolex will upgrade the 36mm Day-Date with the new movement and bracelet this year. Maybe wait to after Basel to make any decisions. The new PMs in 36mm should not be hard to obtain soon after the fair.
You are trading watches still hot in the market for a piece that is not now and never will be. If you want a Perpetual Chronograph get a 5270 at a great price point. The market for the PCC is just not it was in the late 90s and early 2000s when the big money folks bought them thinking they were good