StarWaves
It makes sense to go to Wakanda for vibranium. The Space Stone must be on Earth and Layla's Sacred Gear will surely love it. If not then it's not impossible to hire Thanos as a demolition specialist, I mean he's not insane and they're offering him the stone so why not.
Well now Layla has Thor's hammer, but the question is, why did this hammer still work for Thor even though he was a Zombie? What would happen if Layla killed the Celestial that is in that universe, how much experience would she gain? Layla could go look for the infinity gems of that planet Earth, I mean there would be no one who could stop her, she would just have to go for the gems of mind, space, reality and time, although I think the space one would be in the Asgard of that universe, although I am not entirely sure, I still believe that she could perfectly take possession of the aforementioned gems.