From what I’ve read, I agree that Roswell is the place to go. SBRT has an excellent track record for low and low intermediate risk cases.
Here’s an article of interest... https://www.astro.org/news-and-publications/news-and-media-center/news-releases/2018/men-with-low-and-intermediate-risk-prostate-cancer
From the article...note the follow up time was relatively short - 6-9 years.
None of the patients in the study died from prostate cancer. In all, 100 patients (6 percent) experienced recurrence and 10 experienced distant metastases (0.6 percent). In the low-risk group, 95.5 percent of patients were free from BCR at seven years. In the favorable intermediate-risk group, 91.4 percent of patients were BCR-free at seven years. In the unfavorable intermediate-risk group, 85.1 percent were BCR-free at seven years.