What is an estimate for 200 amp pedestal electrical service with 100 foot 4/0 URD wire?

Suggest you get 3 bids from electrical contractors rather than a guess here. A lot depends on the job market and where you are located.

Also suggest you read the stickies at the top of the forum before posting: https://www.askmehelpdesk.com/electrical-lighting/prices-electrical-work-345486.html