With the level of components you have I would get the N200 and upgrade the DAC to a similar level. The Pontus II is a great DAC (I have one with a Hermes DDC) but I believe @audphile1 and @lalitk are correct about it being a bottleneck relative to your gear.
There's an N200 for sale used from The Music Room here for not much more than a new N150: