At 100k km there is no reason why the original (or current) owner should have had to change major parts. That said, you always need to budget $ and time for any problems that may arise down the road. I bought my 2001 S this spring with about 124k on it (it did have the IMS bearing upgraded as a preventative measure). It's a 12 year old car, it didn't cost that much, and I don't expect perfection. But it's a hell of a lot of fun to drive!
A pre-purchase inspection (PPI) will cost about $200 and is absolutely money well spent! It will at least be a refresher course on your car's history and will familiarise you with any issues.
Il devrait en avoir un spécialiste à Québec qui n'est pas un concessionnaire. Sur un autre forum j'ai vu "Garage Rosaire Lebrun (418)624-9455" (à vérifier).