My frnd recently successfully converted a Kia classic 2 power steering and is not having any issues except tht when u turn the steering 100% of a stationary car its rpm drops 2 a v.low level, its bcoz the engine cant power the electric motors on idle rpm...
On the other hand i will suggest u 2 leave the idea of power steering, alto is a v.light weight car u dont need a power steering, a little increased air pressure in the front tyres will just work f9!