I have a project coming up that consist of 2500asf shop and a house with attached garage that is 11,500asf. The shop will be built first, so the service will be installed on the shop. I plan on 200A for shop and 400A for the house. Based on cost and availability I would like to install two services rather than one 600A. Both services would be installed on the shop with 400A being ran underground to the house. Is this acceptable?