bring in your own lumia 822 from amazon. selling locally for 3-4K, amazon has it for 110USD Locked to Verizon 4GLTE, but unlocked on GSM. 4G also working on mine normal.
Bring in a Motorola moto g. 200 us. I usually root and rom all my android phones. This is the first I've left completely stock and have had an absolutely great experience so far.
with that kinda budget the only ting u cud get is another berry. titan procurement (previously known as triniamazon) have the z10 for $1800 so u good to go there...any good samsung is 3000 and up. dont even dream bout owning apple cuz das 4000 and up. 3000 for an old used model.
I really wouldn't recommend going with a phone that's older than a few months, in order that you'll be running the snappiest hardware and have the longest official support for it