My cousin has a cat, 100 an hour. He's in upstate NY. His prices are on the high side for the area, but they do fantastic work. You might get under priced on 125.
I don't know much about street sweeping but if you think you'll have trouble making money on rented equipment you might want to consider other ways to accomplish it. Again, I know nothing about this service, just know what he charges for the bobcat.