Hi there, looks like we're in a similar situation, I had surgery in August 2024. My pre operation values were Gleason 7(4+3), N0, M0 and pt3a. This was increased to pt3a+ on histology as there had been some breakout to the capsule surface. First PSA was <0.1 (undetectable in my area, South Tees), then 4 at 0.1 followed by an 0.2. Not had a PET scan here but straight referral to oncology, followed by radiology.
Plan is the standard 4 weeks of 5 sessions/week delivering 55Gy. It's been a bit of a bummer but having a treatment plan, fully explained and validated by the oncologist makes the way ahead clearer and more acceptable, especially when I see what others here have said.
Due to start next Wednesday, good fortune to you too.