The International Jewish Cemetery Project web site at www.iajgscemetery.org is the best source about the current condition of any cemeteries in Kalisz, and many other towns.
The IAJGS site is also referenced in the text of the Jews of Kalisz Project here on Geni.
The IAJGS site does not contain any photographs. The stones are gone, some were moved but actual cemetery gravestone access is poor to none available, like many others.
Thank you for your interest in this subject town (actually Kalisz) and particular surviving Jewish aspects.
Update:
I kept checking, all my great-grandparents from both the Wartski Hachoen family and the Weingot family were buried in the old (ancient) cemetery in Kalisz
.
From what I was told, both the Nazis and the Poles completely destroyed the cemetery, and not a single tombstone was preserved
.
The only thing that has been preserved, is the list of all the Jews in Kalisz from the beginning of the Jewish settlement in the city, unfortunately, the auction house demands a sum of tens of thousands of dollars for the list