Just want to chime in here. Highly suggest getting the package from the Academy through the Nex store. It will make life much easier when dealing with warranty, repair etc.
And if using the surface pro is not to your liking, highly suggest getting a Dell Inspiron or the Latitude line of laptops. As the Academy mainly uses Dell products, supporting Dell laptops is very straight forward.
If Dell is not to your liking, please STAY AWAY from the following brands.
Apple/Macbook/iMac - Unless you think you can convince the DOT to change the policy.
Lenovo - Same, banned by DOT policy.
HP, MSI and Acer - of these 3, HP is the worst, as their drivers don't behave well with the Academy's software. Both MSI and Acer from experience just don't last.
Just use Dell, less headache.
Remember, your kids will be carrying the laptops/tablet around all day. The ease of getting service is important.
Also, most MN will bring an extra/backup laptop with them during sea year, as to avoid long delay in shipping replacement to their port of call in case their primary computer dies. So might want to budget accordingly. Not absolutely necessary, but highly recommended.