At this stage, it makes no sense for LM to play hardball. The Typhoon and Rafael stand no chance based on recent pricing. More importantly the lack of spares seems to have reduced the readiness rate for Typhoons and Canadian military procurement staff dealing with Dassault....OXYMORON Alert!!
The battle will be between Boeing and LM IMO. Given the 5th Gen technology and a minimal price difference (if any), LM should win unless Boeing cooks up some kind of lucrative ITB package. Junior no doubt hopes this will be the case. In the unlikely event junior loses the next election, the Conservatives will order the F-35. Ontario’s premier, Doug “the thug” Ford will help the federal conservatives as it will benefit Ontario more than Quebec.
The spares availability for Tiffy is a synthetic issue - a number of members of the Typhoon program (and I'm speaking definitely here of the UK and Germany) haven't ordered spares "in depth" to cut costs - if the Canadian Govt struck a deal with the right parameters, spares would be available I'm sure.
Personally, F35 strikes me as a much better buy in every department but that's just my opinion based on the fact that the Canadian bird would have to carry US compatible secure comms to meet NORAD commitments etc.
Just buy what the big dog in the yard buys, you're guaranteed a lifetime of spares, upgrades, software drops etc.