I think about upgrading my speaker setup, need some help

Hello guys. At the moment I own Denon SC-350S I got from my dad as Front, LTC E1004 as Center I got for free, and two Fisher STE 171 wich sound like shit and are more or less broken (one is missing the middle speaker), but also for free that’s why I took them Now I’m thinking about buying two Canton GLE 490 for \~250€ wich is around my budget (have to include this word WTF)and plan to use them as my new fronts, put the Denon in the back and the Fisher‘s out the window. Do you think it‘s a good idea? Obviously as long as I like the sound of the the Canton ones as soon as I can test them.

Crossover atm at:
110 hz for fronts (because some weird noises, may be broken, left definitely is but just a bit)
250 for Surround (because completely broken)