Hi,
Unfortunately, the treatment of such scars remains challenging. All current scar treatments are not able to offer significant cover-up improvement.
Skin grafting is meant to patch up wound defects that otherwise cannot be closed. The final cosmetic results of skin grafting is far from being cosmetically ideal. Hence there is really no role, whatsoever, for skin grafting in your situation.
Physical cover-up and various forms of camouflage remain the most practical method for most patients.
Take care!