Hi, I'm sorry to hear things looked up, and then seemed to have taken a dip again - it's that damn cancer rollercoaster at work!!
I can't give you any information myself (my husband's only affected adrenal came out with his nephrectomy), but I'm sure others here may well have had a similar experience to this, plus I can definitely recommend another email loop called kidney-onc which you can join on http://cancerguide.org/kofaq/ Many people here are there too, but it has the largest body of information,experience and advice that I know of for RCC.
All the best - Julie