Hi, Hopeso - you landed in the best possible spot here for support and information.
There's so much to learn about options, scores, treatment, etc.
Briefly, you'll first have to get the biopsy report. That will give you a "guess" of whether the cancer is contained within the gland. Next, they may want to confirm that with cat scans, X-rays.
Next, you can start researching options. No, if the cancer is contained, you won't likely need follow up radiation if you select surgery. Chemo does not work on prostate cancer, directly, so radiation is used. You may indeed choose surgery or select any of a number of other treatments.
Regarding treatment, it is usually better to go with a specialist who is outstanding in his/her firld and who has performed the procedure multiple times. For instance, if a da Vinci surgeon is in the 50-100 range, there might be still a bit of learning curve (not always the case, but that's what research still reflects).
Specialists sometimes try to "sell" you on their procedure. It becomes very confusing, but -truly - you will wander along and eventually find your way to a decision. It's a scary time, but one that you indeed will get through.
Keep posting and don't hesitate to ask any questions.