re: How much for a 40k lb excavator for 2-3 days?

A Cat 316 is 38,000 lbs. Someone suggested a Cat 315 but that’s just a reduced radius Cat 313 excavator. The 316 runs about $675 a day and about $1900 a week (3 days equal a week in the rental world. Meaning if you have it for 3 days, you might as well keep it for 7. It’ll be the same rate)
Those are just the rental rates though. Do you need delivery and pick up? If so, add some money? Need the rental insurance? If so, add more money. Need any attachments like a hydraulic thumb?
8 hours a day, 40 hours a week runtime allowed.
Probably wouldn’t rent that size to an individual without a full blown credit application and account set up.