How would you manage a young, healthy patient s/p open radical hysterectomy/bilateral salpingectomy/ovarian transposition/bilateral SLND with now stage IB3 HPV-dependent adenosquamous cervical carcinoma?

Pre-op stage was IB2, but post-op: tumor 4.5 cm, negative margins, no LVSI, 6/15 mm depth of stromal invasion, negative SLN.