Well, here we are again. A lot has happened since I last touched this client, and I like to imagine I've gotten pretty good at working with the computers and such. That being said, this client was near-broken at the best of times, and after sitting on the shelf for nine years, many things have broken even further. Long story short, I got the project to build with the proper libraries, updated things to point to the legacy servers, and bandaid-fixed the handful of crashes I experienced in my hour or so of playing, but I make no promises as to the client's reliability. The client is also on github this time around (and properly forked from xcom's original apoc lite client), so feel free to make your own contributions.
GitHub: https://github.com/theportals/Haven-and-Hearth-client-modified-by-Ender
Download link: https://github.com/theportals/Haven-and-Hearth-client-modified-by-Ender/releases/download/v1/apoc-jank.zip
Building still requires Ant. I imported the project into IntelliJ and built it there, but you build it however you like. May require being built in Java 8.