Setup VPN on the Rpi3 LE8 or create a dedicated VPN router?

    I have a Rpi3 with LE8 player attached to -->main router-->ISP router (bridged)-->internet

    I use the LE8 Rpi3 to play:

    1. Local video, audio and images on a NAS (via NFS sharing)
    2. Spotify songs from my Tablet and Smartphone devices to a Spotify Connect Device (which LE8 also is)
    3. Internet video and audio streams

    My remote control for kodi is an android Smartphone with the Yatse App

    Now some of the Internet video and audio streams I would like to play through a VPN.

    I know I can setup a VPN on the Rpi3 LE8 system, but I also have a spare Wireless Router, which I could use as a dedicated VPN router

    My questions are:


    What is better: Setup a VPN on the Rpi3 LE8 or create a dedicated VPN router with the RPi3 LE8 attached?

    And if I setup a dedicated VPN router:

    1. Can I still access the NAS which is connected to my main router? (I also use the NAS for other purposes where my ISP network is needed)
    2. Can I still use The Yatse remote control app on my smartphone when connected to my main router?
    3. Is the LE8 Spotify Connect Device still visible in my smartphone when connected to the main router?