Actually Shotblocker is in error, you can use welders to repair parts prone to damage. Alternately you can employ landing gears set to a lower break force so the moving parts which go "bump" will slide smoothly instead. One final solution could be to use mass blocks and carefully adjusted gravity fields to hold anything that wants to jiggle where you want it.

Not too sure how helpful any of this is, your design looks rather full already and would probably need an overhaul to implement these suggestions.

this is absolutley insane good job

There (as of 4/5/15) is no way to fix the destruction of the parts because of rotor and piston physics as of 4/5/15.