I suppose now isnt a good time to sell my 20mm superview
Frontier optics import and sell UO orthoscopics
http://www.frontieroptics.com/
Considering the lx90 has a 2000mm focal length a 10mm eyepiece will give you 200x, which is as much as you can use with average seeing conditions.
A 10mm ortho would be nice for planetary, along with the 25mm plossl assuming reasonable quality should get you started.
Then you can start saving for a 24mm teleview panoptic