Chawke confirmed preliminary talks are taking place with Newcastle, although they are with the club's legal and financial people rather than Ashley.
"It's on sale for about £100m, which is about £500m less than what it was worth a year-and-a-half or two years ago," added Dublin publican Chawke.
Chawke was part of a syndicate of eight who bought Sunderland and he says it would be a similar set-up if a potential takeover of Newcastle was successful.
He added: "We're thinking about possibly the same as we had in Sunderland, about eight people maybe, depending on what money we can get.
"It's a great city, Newcastle. It's a bit like Dublin - vibrant, full of fun - all the best things in life are there.
"It makes perfect sense if I could just swing it."
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