The following is probably what's going to happen.
Poilievre will win on the first ballot, and the Liberals will see the writing on the wall, and will choose a new leader after that, and before the next election and will perhaps be led by Carney.
Then the 2 right-wingers can fight it out. By that time there will probably be several provincial NDP governments and the federal NDP with dental care and pharmacare, should be in a position to take advantage of that.
https://www.cbc.ca/news/politics/poilievre-conservative-leadership-1.641...