I think you are asking the same question. International versions are locked to a carrier, or unlocked. I have heard of EE phones working on TMobile w/o being unlocked, but I haven't seen it in person, so I can't confirm.
An unlocked 930 will have come from overseas. There is not a US variant. Also, it will not have LTE - B&H photo does not have some magic switch that no one else has that will make a 930 have LTE.
I bought an unlocked 930 from Europe, which turned out to be an HK variant. I use AT&T, and do not get LTE.
A cheaper alternative for you though may be to be an Icon. It will say Verizon on it, but it can be used on TMobile out of the box. An Icon in the US will cost a whole lot less than a 930.
On AT&T, Icons won't receive MMS. You'll have to check the Icon section, but I believe that folks there said they were able to do that with TMobile. It will also not receive LTE, but those are more available, cheaper, and the same phone.