Hi, I'm in need of some help on the electrical to my home. Northern Wyoming.

I am installing a 200 amp service. Here is my plan...

From the power pole, down with 4/0 4/0 4/0 aluminum URD USE XLP cable. This goes immediately into schedule 80 PVC and then 28 inches into the ground. Then direct bury for 24 feet. Then the wires go up schedule 80 into an outdoor Square D QO 200 amp meter socket with 8 spaces for the circuits for my shop. Then the 4/0 cables plus a #4 THWN go down schedule 80 PVC 28 inches into the ground. This is direct bury for 70 feet to my house. The wires come up Sched 80 PVC into a Square D 200 amp circuit breaker exterior disconnect and head down (but not into the ground) Sched 80 PVC and through a wall into my basement. Still in PVC, the wires head 15 feet into a Square D 200 amp load center. This new panel will be grounded and bonded by 8 foot rods and cold water supply.
There will be 2 ground rods at the first meter socket/panel, and two between the exterior disconnect and my 30 space load center. Then I will re-energize my old 50 amp panel from the new one, and as the house gets re-wired, run all new wire to the new panel.

Do I have a good grasp on doing this project myself?

The #4 THWN wire is to separate the ground from the neutral from the meter to the house. Does this mean the new breaker box in my basement is to be treated as a sub panel and the meter/8 space breaker is the main panel?

Thanks

For simplification, Power will come underground to the meter location at my shop, then go underground to the exterior disconnect on my house and then through a wall into my basement (4 feet below grade, 3 feet above grade) to the new house breaker box.