Getting power to the new shop

Look at section 7 page 20 of your ESR:

https://www.portlandgeneral.com/-/m...-requirements-single-family-service.pdf?la=en

Electric Service Requirements - Construction | PGE

It almost looks like the max service wire distance to a 200A panel is 100ft and 80ft for 201A-400A. I could be interpreting that wrong. Ask your power company person.

But you say you have a 200ft service? That's a reallly long service.