Late 2004, early 2005 GR Mag did a series of stories on this subject...Looking at Feb 2005: Installing RC Systems.....hope it helps...also dig around here for post from Tony Walshman, he did a nice job documenting an easy Batt/RC install in a Mack Switcher a while back.
I use batt and RC, by RCS
cale
here are some links
http://www.trains.com/trccs/forums/388446/ShowPost.aspx
http://www.trains.com/trccs/forums/434717/ShowPost.aspx
Get the Garden Railways newsletter delivered to your inbox twice a month