Is it even possible to play a live feed from vimeo? 

Here is the Vimeo link for my Live HLS feed:

http://dcunilive62-lh.akamaihd.net/i/dclive_1@783619/master.m3u8

Has anyone been able to make this work?

Thank you
Chris

I took a look at your file and it works. You should be able to use it in your feed. Just make sure to set the proper bitrate and length