And maybe even less than half *that*. You don't actually need the tool
in many cases. A good bit of rebar (trivially found at many construction
sites), a prybar, a heavy screwdriver, threaded rod, the trick is just to
get the thing out of its rim. Specialized tools are for those who are
doing it every day.
I suspect that the person responsible did not go out and buy a hook, so
this may be pointless anyways. 
... JG