Their selection will raise some eyebrows, but Hudson insists they are both up to it.
"We are in this position now that...I will not, at all, bring a player in just to try him out," said Hudson.
"I'll put my neck on my line for the players that I'm bringing in - and if they are no good - you can chop my neck off afterwards - that's how I see these players. [They are] not only technically good but have something about them in terms of personality."
Aside from being eligible for Australia, the Ingham brothers could also have been selected for Samoa. The move to bring them in at such a stage - especially Dane - could be interpreted as a pre-emptive strike to lock them in to the silver fern ahead of other nations, but Hudson said that wasn't the case.
"No," said Hudson. "As of today, both of them are good enough to get in our team. [Dane] could come in and if he does well, he's with us, playing first team football. That's how highly I rate him."
However, in the same breath, Hudson hailed their decision to align with New Zealand as a coup for this country.
"[It's] testament to the hard work that everyone has put in that we have a couple of players that have chosen to play for New Zealand rather than Australia," said Hudson.
"It's huge, it really is huge. I don't think we could have done this two and a half years ago...the whole landscape was different and it would have been a lot harder. Both are really promising players."
Barbarouses is an interesting scenario. His season for the Phoenix has been a slow burner - though he has found some form in the last few weeks - but Hudson says his non-selection was also based on his recent output for the All Whites, but the door remains open for the 27-year-old.
"I have spoken to Kosta," said Hudson.
"He's a good man, a great character and on his day he is a top player. [But] I always make a decision based on the best interests of the team. The reasons why are between me and Kosta..he is still an important player for us and very much in his thinking."