I NEED HELP AND LOTS OF IT !!!!!!!!?

i want to redecorate my room. and i want one of my walls mirrored like the entire wall. dont say ewww thats eighties because i have my mind set on it. how much would a 6 x 8 foot wall cost ? and my floor is carpet and i want it checkered, roughly how much would it be to replace the carpet with tile ? best answer :)