Yes, I would love to do a yDNA on the Chambers in North Antrim. It is recorded that McCambridge, in some instances, became Chambers "in Northern Ulster." Since the McDonnells owned Antrim and McCambridge comes from Kintyre, it is likely the the name change happened in Antrim.
I have posted elsewhere that the Chambers of Tullynaskeagh, County Down match the Cushenden, Antrim McCambridges. They are R1b and descend from the Ur Niall (Niall of the Nine Hostages), High King of ireland.
I haven't lost faith yet in my search. All Scottish Clans and families have mixed yDNA. R1a runs anywhere from 1% to 25% in Highland and Western Scottish Clans. More than one McCambridge family may have had their name changed to Chambers in Antrim.