How would you manage a patient with bilateral adrenal metastases if SBRT is not an option?

Clarifying question: Why isn't SBRT possible? Even for difficult lesions with direct abutment of the duodenum, other small bowel and stomach dose escalation can be accomplished by generating heterogeneous plans that cool off the dose at the OAR interface. I generally prescribe 40-50 Gy/5 fractions, ...