No, there is portions of the ECM's that cannot be read out to then be used to initialise an out of the box ECM, it requires TIS.
Then it also requires several items to be initialised with a TechII or similar on the vehicle itself.
I'm trying to save you some time and money, it has already been attempted (non US OS in to a new US ECM using TIS), it corrupted it and could not be recovered.
No, see first response.