If you choose a telephoto lens, note that the design severely limits tilts and swings. The long lens barrel and optical design cause mechanical vignetting when the lens is rotated around the shutter (tilt or swing) which precludes using scheimpflg to control the depth of field. This may be a consideration - possibly a deal-breaker - for landscape. (Rear movements can be used but they will change image shape, and not all cameras have centre axis rear tilt or swing.)

I have a Fujinon T 400mm and a Nikkor T ED 360/500/720mm with all three rear cells, and while the lenses offer generous rise and shift (depending on focal length and format) they mechanically vignette when applying anything that approaches useful tilt.