Ger
Welcome. Please slow down; I don't know what micro surgery is; your doctor may be referring to robotic surgery. Micro surgery doesn't exist when dealing with prostate cancer. It's either radical open or robotic and both are major surgeries.
A Ct and Bone scan will do you absolutely no good except waste your money. If you had a psa of over 20 it would be appropriate. If your doctor did feel a lump or nodule then the best thing for you would be to get an MRIS or a color doppler ultrasound rather than a bone or Ct scan. These will tell you if the nodule has penetrated the capsule. You need to know this because if it has, then surgery will not cure you.
Before you decide on anything get a few 2nd opinion from different doctors specializing in surgery, radiation and oncology. Read "Primer on Prostate Cancer" by Dr Stephen Strum and Dr Patrick Walsh's book.
With a Gleason 6 you have plenty of time to make a decision, many months if not years as a G6 is seldom fatal. You have to understand the exact status of your individual cancer; then bone up on the side affects of each treatment option as the cure rates are similar. Ask as many questions as you can and if there is anything you don't understand post it here and you will get lot's of help.
JohnT