[Rich66]

Those SUV levels aren't very high. Can they say for certain you have liver mets?
An MRI is sometimes used to determine bone mets. MRI wouldn't give you pathology. But at this point you seem to have reason to target ER and Her2 anyway. maybe ask them what the practical benefit of the bone biopsy would be. If the mets aren't too active, you could try other ER approaches and save Faslodex for later.