Sounds like you should put up "temporary house" like a camper or cabin within the 500 ft so you'll get PoCo to install for free. Just order BIG like 200A or 400A.
Then after while when dust has settled, extend electrical on your own property at your own cost with the big equipment you have available. Trench down 4 ft and install 3" conduit for the last
1,038 ft as I'm guessing you can do it cheaper than $23 / ft.
Had similar situation for land that didn't have any natural gas service. However, across the road there WAS service. GasCo estimate was $7 / ft the whole way as it involved right-of-way under the road then down country road to the existing farm house that's been on propane for 50 years. Ironic thing is GasCo didn't have any problem about mile away to put gas service for EVERY house . . . those were $400K houses !!!