A shotgun is always the first gun one should own IMO.
A Remington 870 is a good choice. New or used.
But wish a handgun? A 357 mag is an excellent choice. Easier to maintain than a pistol and it packs quite a punch + can use 38spl for target practice (lower cost ammo).
Set on a pistol? Beretta 92 9mm is an excellent choice. New or used.
Desire a rifle? Cannot go wrong with a 30-30 lever action. Or an AR15. $$ is going to be a hurdle for these rifles.
An AK is a good choice as well and should be easier on the pocketbook.
No DL? Call a ffl and ask what he would need to show residency. I never cared myself...just went with the signed 4473 form. Of course, buying from a private seller may eliminate this issue all together.