Partial Remodel of Basement

I have a basement with a raised subfloor and a bathroom in the corner. The area is about 430sq ft for the living space and 120 sq ft for the bathroom area.

I want to gut the floors which are currently old hardwood in the living area and tile in the bathroom. There is a shower, sink and toilet as well as washer/dryer and hot water tank in the bathroom. All flooring and subflooring must be removed and then the concrete slab cleaned. Once all is removed, I want to lay down vapour barrier which is currently not there, plus insulation then a raised subfloor which is currently about 4 off the ground.

I need to do this all without tearing down existing walls exept for the walls separating the livingroom and bathroom which need to be rebuilt with a different configuration.

I also want to ensure that the bathroom is sealed with a waterproof membrane in case the shower, tub, washer or hot water tank ever leaks.

It's an almost 100% gut job except that the walls will remain.

How much should I expect to pay for this type of work and how long does this type of job take?