Considering they knew these failure modes in advance, would it not have been prudent to put some sort of self-righting mechanism on the lander? Something like the mechanical arms you see in Robot Wars.
Also I've said before and will say it again, the moon is not far away. Unlike Mars and other celestial bodies where we have to time launches around orbital positions, gravitational slingshots and such, the moon is really close by, and we should be lofting stuff onto it on a monthly basis.