I've been on LOST since 2011 and haven't seen anyone install power steps.
I would recommend a good set of rock sliders that can also double as steps. They will last a lot longer than the tubular side steps you can find online.
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=34&t=84459
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2008 Liberty Sport 4x4 Automatic
Jeepin By Al 4" Lift Kit
BFG KO2’s 245/75R16
Full MOPAR skid plates
Rock Lizard Skink Super Sliders
AtTheHelm Front Recovery System & Roof RackM116A3 Trailer build thread: viewtopic.php?f=72&t=77997