Anyone facing major treatments for PCa can consider more testings, opinions and reviewing pathology, etc. Who did the pathology is an important factor, getting scans is worthy of consideration cause once in awhile even lower grade patients may have PCa that has been found elsewhere (generally though scans are over done and over rated, the better scan seems to be C-11 Choline or MRI's compared to normal ct and bone scans). I had much higher stats and scans 2002 and were clear looking, but in my case warranted to have done. Your stats are real borderline and scans likely not to find anything.
Have to add this to the perplexity of PCa, you see your pathology has multiple findings as to grades and volumes of PCa, not meant to blow anyones mind but you only sampled something like 1% of the prostate gland (swag percentage used). So, all these treatments are based upon the currently known pathology found, which is actually not perfect science. Thus, patients results vary like crazy in this mix.
You can search and use nomograms or Partin tables to get an idea of how you might fair comparatively, it is still a bell curve of data, useful but not a certainty. So, we patients face plenty of uncertainties in fighting PCa and the decisions are always difficult and painful to contemplate, but do your homework and make your decision(s) along with the docs and then travel the road. Only the patient walks the walk, the good news is support forums, groups and new friends can make it alot nicer travel. Best to your friend.
If doing surgery ask about lympnode sampling or possible removals, how determined, how many (this is an interesting question to pose)??