many thanks.
p.s. If anyone has a link to a recommended monitor please could you add it.
My budget is about £400ish
I would say possibly, but if you do want to use supersampling you would be better off using the nVidia control panel to set DSR to 1.5x and 2.0x. This is the same as the in game supersampling but is much more efficient. I run ED on a 144hz monitor with a GTX980 @ 1080p with 2.0x DSR (essentially 4k downscaled to 1080p) and I get 70 - 90 fps in stations and on planets and 110 - 144 in space (capped by adaptive vsync). To be honest, you probably won't need supersampling at 1440p although the aliasing in this game can get pretty terrible at times. I need to use DSR or it's borderline horrendous, especially on approach to stations.