basal cell carcinoma surgery

I was diagnosed with infiltrative invasive basal cell carcinoma on my upper lip reaching to the vermillion. One doctor proposed 1 or 2 flaps in my case. One for vermillion to cover the defect after cutting. The flap shall come from the right side from the lower lip. The other flap from nosolabilal fold. Others wanted to cut it and sew it without flaps? I know, it depends on the size of the defect. What do you think in my case? Is flap necessary?