Shift Kit

Since I'm dropping a new engine in I thought that I might as well freshen up my 904. Thinking about replacing the filter/shiftkit/fluid and adding a drain plug to the pan to make fluid changes easier. Any suggestions, tricks? I'm thinking this one I'm a noob when it comes to transmissions :drinkers:
http://www.summitracing.com/parts/trg-tf-2/overview/make/dodge