Thinking lifting
 

I have a 98 chevy blazer 2wd. It is currently lowered on 20s. Kind of tired of the lowered ride and thinking about lifting it. I found a set of coils for the front to lift it 2 inches and rear shackles i can either get 1.5 or 2 depending on what i get. Would this be an ok set up? And also could i run a 31 inch tire with my 20 inch rims
Please help