After checking out the CL ad...
Centipede seems decent - just need a control panel overlay, but looks nice otherwise.
The Lost World backglass (which is a focal point on that game) is ROUGH. Missing big chunks of paint near the credit/match area, and severely delaminated throughout the rest of the backglass. You may be able to seal what's left, but if those big missing chunks aren't intact, and laying on the inside, it's not going to look pretty regardless...
Cheap enough, but that Lost World is indeed a project given the flipper issues mentioned, and that backglass may not be easy to replace..
You're likely to pay $300 for a good non-flaky backglass for the Lost World.
