thank you for your excellent questions.
here are a few things to consider:
--depending on the grade of the tumor, watchful waiting is reasonable for low grade tumors. There is an argument for - say - grade 1 tumors- that chemotherapy is not very effective and it is best to wait for symptoms
--if the cancer is estrogen receptor positive, consider an anti-estrogen such as tamoxifen and arimidex
--ask about clinical trials with PARP inhibitors
these experimental agents are designed to interact at the molecular level where the gene mutation occurs
--finally are you absolutely sure those lymph ndoes are from ovarian cancer and not some other process benign or malignant? have they been biopsied?