I want to buy on ur site 3 products:

If i chose right caple? If it is all what i need?
Also the Thunderbolt monitor it is the same 5k like here?
When i try checkout, i cant fill right the address data

What should be in state? I try type UA and RU but it not work for me.
Also my phone number is +380939653090 but i can't type it because it is limited...
How many will cost me it deliver to Ukraine? How in ukraine will work guarantee?