I wouldnt want us to sign all of them like - as you said together for the money spent it wouldn't be that big an increase in quality to justify the outlay however I would certainly take one or two at the right price.
The problem for us is that until we get back into Europe our options are rather limited- we either a. Offer CL quality players daft wages (which I dont think Brands will do) or b. Sign attainable players who whilst not massively better than what we have can come in and do a job rather than the squad we have now filled with players like Tosun, Davies, Coleman, Niasse, Martina, Schneiderlin who realistically offer us little to nothing and in some cases can be detrimental to us ie. Niasse.
People forget before Man City signed the likes of Silva, Toure & Aguero they had to sign players like Elano, Santa Cruz, Lescott, Adebayor- players who weren't great but good enough to push you into Europe that opens up the door for you to attract those 'next level' players.