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Y'all are overcomplicating it again.
Reusing the original power steering pump and just adding an electric motor via belt drive or shaft coupling is SOP in the EV conversion world. I have one friend who did this on an electric Dodge Dakota, but he only turns the pump on for low speed parking maneuvers. If he's moving at any speed, no power required. Another friend used the Toyota MR2 electric power steering pump in his electric F250 pickup. It stays on more of the time, but also does the job fine.
Only caveat is that if you turn the pump on in the middle of turning the steering wheel, it can move suddenly with a violent jerk.
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2012 Mitsubishi i-MiEV, 112 MPGe
2000 Honda Odyssey
1987 F250 Diesel, 6.9L IDI, goes on anything greasy
1983 Grumman Kurbwatt, 170 kW "Gone Postal" twin
1983 Mazda RX-7 electric, 48 kW car show cruiser
1971 VW Karmann Ghia electric, 300 kW tire-smoker
1965 VW Karmann Ghia cabriolet, 1600cc
Have driven over 100,000 all-electric miles!
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