I recently used the available TTS-plugin for Doomtown to play with a friend (who is also a bit OCTGN-averse because of installation-overhead..)
Although OCTGN is actually really easy and automates lots of things for the players.
You really only need to remember 2-3 shortcuts for passing and lowball. Takes around 2-3 matches to get used to the interface i would say. For almost everything else i use dropdown-menus.
Also i'm currently not sure there's a convenient way to search through your opponents discard-pile in the current TTS-implementation, which imo is necessary for competitive play.
Otherwise DTR for TTS is a really neat and beatiful plugin, the deckbuilder works easy enough. We just increased the size of our cards, since standard size felt a bit small to determine board-state in a normal zoomed out view.
Did you want to build a new plugin or improve the existing one?
I think there's also a project going on to build something like jinteki / throneteki .. i thought about joining that but took too long to try to figure out how to setup a working MongoDB / node installation. Not enough free time available right now to sacrifice multiple evenings just to get the development suite running ;/