A couple of sites that may be of interest to you if you haven't already found them.
http://m1.aol.com/kewtasheck/
Jan Miller says "If it has knobs, lights, pushbuttons, or makes noise, I'll take it apart. Just ask my Dad what happened when I was eight years old....." her site has lots of interesting stuff on LX90 Mods and DIY fixes; even how to remove the corrector plate!
http://www.users.bigpond.com/lansma/Default.htm (This one has been included in the iceinspace links page and has info on guiding the LX 90 for astrophotography)