Instead of settling on a mediocre system like the one you linked to, why not build the system you really want over time? Understand, you can find lightly used gear at healthy discounts if you look around locally.
I would look for a budget priced/used but full fledged AV receiver and L/R/C speakers just to get your system jump started. You can add a sub and surrounds later on.
My preference otherwise would be most of the Onkyo HTIB models, those without a BD player.
I've recently been trying to find a 5.1 or 7.1 surround sound system to buy but don't know what to get. I'm looking for something that will connect straight to my tv through hdmi or optical cable and play through all my systems if possible. I'm using a sony xe90 55 inch tv and mainly use my ps4 for movies and gaming but I wouldn't mind a uhd player at some point. There's a link below to something I would like but the problem is that it comes with a standard blu ray player which I'm not needing. I'm basically just looking for the surround sound speakers only. I wouldn't mind one that comes with a uhd player but not a standard blu ray player as I already have my ps4 for that. My budget is £400. Any recommendations would be appreciated, thanks.