Script Bruteforce Rerar

Hi,
In pyRescene's sources I found these scripts: bruteforce_time.py, rrcrcbruteforce.py, createrar.py and rar_rebuild.py.

I would like to try to do a manual rerar on a release for which I only have a date range: time: seconds possible as well as the sfv file but no original .rar.

I would like to know which of these scripts will allow you to try a bruteforce on all possible dates until you get the right crc (if it finds it of course).