Help with my wheel setup 20s on 33s

[Rollout12183]

I just ordered a ccm 2 1/2 front 1 inch rear level kit for my 07 tahoe I also just ordered some gear big block wheels 20x9 -19 with 33x12.5 20 tires anyone have pics of a setup like this ? I also wanted to know what I gotta cut or move to get them to fit my last truck was lowered on 24s I don’t know much about lifts thanks in advance.