I can't I.D. my pump

I’ve got a bad motor and I’ve I.D. that as a century HSQ165. I think it went bad due to a bad shaft seal. I’m trying to figure out which gokit I need. Unfortunately, there are no identifying marks on the pump at all. I took some pictures of it and if any one can help me I’d appreciate it. Additionally, I see a large chunk had been taken out of the housing right where the impeller meets it.  Not sure if that’s a problem or not…

Pictures