Levy structure change and converting to strata

I own a flat in a small company title building. All owners pay the same amount in levies, despite the fact that one of the flats in the building is twice the size of all others and has two garages (the other flats in the building have none).

All owners are interested in converting the building to a strata scheme, where the levies will be based on meterage, but in the meantime is there a way to have the owner with the big flat contribute a more fair amount towards the levies for the company? If it went to vote can we all vote to re-structure the contributions?

Also, we’re all contributing an equal amount to the cost of having the building converted to strata, even though the owner with the much larger flat and garages stands to gain considerably more from doing this (based on strata flats being valued more highly than company title)

Any advice would be appreciated thanks.