What are all the customer and order / history database tables?

I've had a lot of customizations done, and I want to pull out of the 1.2.7 database just the customer and order stuff, etc., to then insert these into a fresh install of 1.3.7 that already has the categories and products working okay.

For example, do any of the Configuration table settings relate to customers?

(Gotta run at the moment but I'll come back to list the tables that I think I need)

Many thanks