That doesn't work either. SRD, Flesh to Stone:
"If the statue resulting from this spell is broken or damaged, the subject (if ever returned to its original state) has similar damage or deformities."
If you powder the statue, that would count as enough damage to kill.
The idea I like the most from the previous discussion is the one where you toss the corpse into a plane with sped-up time. Seems to be non-reversable once the body has adequately aged.
"If the statue resulting from this spell is broken or damaged, the subject (if ever returned to its original state) has similar damage or deformities."
If you powder the statue, that would count as enough damage to kill.
The idea I like the most from the previous discussion is the one where you toss the corpse into a plane with sped-up time. Seems to be non-reversable once the body has adequately aged.