I owe you a beer!!!
rtmpsrv - I couldn't start it on Mac OS X, but I installed Ubuntu on a VM, ran rtmpsrv - it gave me the URL.
I switched 400k to 1800k and now I am downloading the highest quality.
I am not sure why rtmpdump didn't run inside the VM though - I had to run rtmpdump from the host OS (Mac OS X), after getting the URL from the VM's rtmpsrv
Thanks man!
Have a good day/evening!