Since you own La Scala DAC, I would lean towards the LinQ and take advantage of optimized AQ Link i2S connectivity between the two components. If I recall correctly, AQUA is not a huge proponent of USB. Their DAC’s are optimized for AQLink, SPDIF or AES connections.
On the flip side, N200 is proving to be universally synergistic with DAC’s that has optimized USB. Even though N200 sports SPDIF output, this would not be my choice due to serviceable TCXO clock inside N200.