I still have the #1209 Zero focuser I used on my Lx200's.....
It was designed to run from the 12V front panel, but I still have success using the JMI separate hand controller..
You could, if necessary rig up a 12V version - just replace the battery with a std 12V socket or look at the solutions on the MAPUG site.
http://thadlabs.com/MAPUG/AstroDesig...ers_Altern.htm