Arduanne over at NoStockUI was looking for a Kungfu replacement, and my suggestions were eaten by the spam filter, so I’m posting them here to make sure they make it through.
Option 1: Ara Broker Tradeskills
I’ve used it and its great for tradeskills (especially if you have a c/d type tradeskill — like transmutes or cloth).
Option 2: BasicBrokerSkills
I haven’t personally used this one, but it looks like it has the same type of skills tracking that Kungfu offered.
Hope this helps!