Hi, I saw there was interest in a unicast version of libpaxos recently here on the mailing list.
That's exactly what I needed some time ago I, so I basically took libpaxos2 and rewrote a good chunk of it. The resulting library is based on tcp, supports newer versions of libevent, and comes with unit tests.
I will soon release this here and update the libpaxos project page accordingly.
The repo I'm working on is hosted on bitbucket: https://bitbucket.org/sciascid/libpaxos