For Fords you will need 7,8,10,11,13,15,16,18,19,21,22 mm in wrenches and sockets along with 1 1/16, 1 1/8 for EGR tubes
You will also need a complete set of Torx bits and metric hex, both 1/4 and 3/8 drive, for brakes and other things.
You will need 5/8 and 9/16 spark plug sockets, and if the shop does older ford the 13/16 plug socket too. Also you will need a 7mm 1/4 drive swivel for the COP on 4.6 and 5.4 fords.
SAE sockets on late model Fords is pretty rare other than the 2 big wrenches I noted everything is metric