Maserati Mistal steering

It appears that the manual steering box for the Ghibli and the Mistral are the same but some of the additional steering parts are different. Has anyone done a conversion of the Mistral manual steering to a power steering setup using the Ghibli power steering parts? Has anyone updated their Mistral to one of the modern electric systems and if so, what exactly was done to make the changeover beside changing to a larger alternator for the increased power demands.