'Best' way to remove concrete bathroom vanity?

[Jurghh]

So I've currently got some workmen renovating the common bathroom in my condo. I was going to get them to do the larger ensuite but they're not interested in the job. My condo has a number of rules regarding construction that any contractor would find frustrating and they'd rather pass. Q Chang who I used, can't find another contractor to do the other bathroom mostly because the other contractors don't want to take on a job with a customer that can't speak Thai. To be honest with the amount of dust and noise involved in removing all the floor and wall tiles I think i'll just keep the ensuite as it is. However, the brand new modern vanity my wife ordered has been delivered so the brick <deleted> house concrete thing that's there has to make way and I've been selected for the task.

 

The common bathroom had the same concrete vanity but about half the size. The workers removed it by drilling multiple (maybe 50+) holes with an SDS drill and then I let them use my 8kJ SDS MAX demolition hammer tool. It made such a racket you could hear it 12 floors below. I've already put my neighbours through quite enough so i'm wondering is there a quieter way to demolish this thing? It has rebar going through it with the rebar set into the walls with expoxy. The concrete is around 11cm thick with a lower lip around the edge around another 11cm. Even a 9 inch angle grinder will only cut around 6-7cm. The new vanity sits higher than the existing one so it should cover the area of tiles that will inevitably suffer damage. I'd pay someone to come cut it out with one of those 12 inch concrete saws if that's an option.