Chopilot1984
You should have not asked any questions , gone and done the 60 odd hours in the states and left it at that.
The only advise I can offer is , make sure you can log it as PIC time.
The jobs that I have done that required night hours have requested total night and then required for example night winching or vessel landings which you will only get via a position in a company.
But if you just want to tick a box to get a ATP in the US go for it.
Out of interest your location states south hemisphere , why do you need a ATP ?