I purchased a CETME on Gunbroker

and I have a couple Questions I'm hoping someone on here can answer.
1. I purchased the firearm from a private individual, not an FFL. The FFL dealer I am using, to ship to, said he needs a copy of the sellers Driver Lisence for his records. Is this true?
2. The purchase comes with 100 rnds of 7.62x51mm. Can he ship the ammo with the gun, or does it have to be shipped seperately?
I purchased a bunch of stuff on Gunbroker. But never a firearm. Just want to make sure everything goes off without a hitch. Thanks for the help