H'mmm ... a special case - a "one off" - then (and hopefully with just a temporary solution required).

If I were you I would pass this one "upstairs" for a decision by the Big Boys. You know, those folk who take the Big Bucks.

Risk Assessment - Cost-Benefit Analysis - expenditure.

Meanwhile, if you have contractors on site, why not seek a solution (quote) from them?

@Malcolm: (voltage) stabilizer? Are the supplies in Roma that poor, then? Otherwise, what purpose do they serve? I saw many (of the older "servo" type) in Foreign Climes, and always considered them a waste of money. When the power failed (as it did at least daily in some places) - then "off" meant "off"!