Well DHL delivered my new pump in a few days from china.
It fits into the original hole but I did have to drill some new mounting holes - no big deal.
The motor is taller than the spec sheet indicated but I was able to put some spacers underneath the catch pan to allow clearance.
Overall I like it and being 1/8HP vs the original 1/10 I should get better flow.
I don't have anything right now that requires coolant so I'm not going to load it up until I need to.