ABS woes....leaky pump...

Ok, guys, I have a 96 OBS.
the ABS pump has started leaking.
This car was a frankensteined project by the p.o.
It has a 91 legacy engine and tranny.
The car does not have a functioning abs system, sensors are missing, cut etc.
So i don't need an abs pump that works on the abs side of it, i just need one that doesn't leak. Do I need to be very specific on which car i choose one from?
My local pick and pull has a few newer models, but nothing older than 98ish.

Also, anyone ever done a rebuild?

Thanks in advance!!