You asked
Do I need a stabilised lens?
Here is what the site says about that.
From Landscape: Lenses: - A wide zoom, around 16-35mm on full frame or 10-24mm on APS-C, is the classic landscape lens: big skies, strong foregrounds. - A standard zoom, 24-70mm or similar, covers most scenes. - A telephoto zoom, 70-200mm or longer, is underrated: it picks out layers of hills, a lone tree, or light on a distant ridge. You don't need fast apertures for landscapes, since you'll usually shoot between f/8 and ...
From cst1 likes cameras: cst1 likes cameras: I like cameras, and I like helping people pick one. Most buying advice starts from the spec sheet. This guide starts from what you want to photograph, because that decides almost everything else: the size of the camera, the lenses, and how much you need to spend.
Quoted from this site's pages.