Mopidy and OwnCloud with only one webserver!?!

I would like to install on my Raspberry Pi 2 Mopidy and ownCloud. But I would not let two Web servers running in parallel! How can I run Mopidy and ownCloud with only one web server? Should I use Nginx? Or do you have a better idea for this project? Or do not need the two Web servers much resources on the Raspberry Pi 2 ?

Thanks in advance

I doubt you'll see any performance problems running numerous Web servers on your raspberry pi 2. Try it and see.