Its doable, I did mine which would have been 6 years old at the time, it takes a different skillset and mindset taking apart something that was never designed to come apart, it can be somewhat destructive if not thought through at every stage, plastic gives very little feel when its approaching yield point.
Certainly replacing both the inner and outer grille together is the 100% safe option, now that my painted black finish has failed so spectacularly I regret not buying both, I had to replace the grille, it has been shattered in the accident, the surround was fractured but I reasoned that my repairs could be hidden by the black finish, I should have bought a new surround but the black ones were are probably still are stupidly expensive compared to the chrome ones that cost more to produce.