Not sure how much your centre speaker was, but isn't this:
https://www.superfi.co.uk/index.cfm/page/moreinfo.cfm/Product_ID/2082
designed to work with your front speakers?
I was pleasantly surprised by the Q Acoustics 1030i I purchased a few weeks ago too. At only £169 delivered for a set of 90x20x30cm (HWD) floor standers, that are bi wirable/amp, come with their own small stands, and has a compartment for filling with sand (Interestingly, these speakers are roughly the same size as yours, with identical spec!! Supposedly there is a guy at Q Acoustics that used to design speakers for Mission!!!), I thought the value for money is outstanding!!
And they sound fantastic too, compared with the 1010i's they replaced.....