[oil pan 4]

Looks like the easiest, cheapest solution would be what metro was saying.
Find a machine shop or test your dermaling skills by taking another water pump pulley and making some kind of pulley adaptor that will allow an OE water pump pulley to attach to that electric motor. But it will only give you a 1:1 ratio.
If it does start to run hot, I am sure you can EOC like a boss. Just leave the pump motor running for part of the EOC to bring the engine temp back down to where it needs to be.
Then in winter, running hot from lower pump output shouldn't be a problem there at all.
It looks like directly under where you want that electric motor there is a engine mount so you have the perfect place to attach that electric motor.
Yeah you can do this.
Then if you find the 1:1 motor to pulley drive to be unworkable I say get another alternator pulley and weld it to the pump drive, since there is no way I can see that would allow you to bolt it together. But that looks like it might give you a 1:3 motor to pump speed increase.