Levesque never became a born again federalist, remained a member of the PQ until his death and approved of Meech Lake only because it was the best deal available and Renee was a pragmatist.    (Supporting Meech also gave him the personal high of being able to stick it to Trudeau 1.0 whom he despised.  Lucien Bouchard became a born again federalist much later.)

As for Mulroney owing his 58 seats to Levesque and Meech, he did promise in 1984 to negotiate a new accord with the provinces that Quebec would accept "with honour and enthusiasm" but this was not a major factor in 1984.  Meech Lake became a bigger issue in Quebec in the 1988 election.

Mulroney's success in Quebec was mainly due to his personality and political skills. (Ten years ago, a Quebec poll revealed that most French thought he was French while most English thought he was English.)

Levesque was the leader of the movement to break up our country.

This doesn't make him a great Canadian to me, it makes him a traitor.