That slab is all cracked . It will just break up .
I would just stack the concrete cubes 5 pieces high and then drive them out on the forks .
If you break it in small pieces you will have to load buy hand .
I would charge 550 1/2 day charge.
Most of the time i could get the day out of it buy dumping the creek my self and dropping some fill and grading the yard . 1050 +- John