Interesting question! I certainly have always done this work on my own, which might help explain why the forum has been a constant for me - for 14 years this September.
My husband and I separated in the spring of 2009, right after tax season had ended. As I realized two years later while doing the SEP, I'd had mild TMS symptoms off and on all my life, but they were quite manageable all those decades, and we're always explainable as anxiety (about which I did nothing, ahem).
Another realization as I looked back is that my symptoms were gradually getting worse as I approached age 60. That birthday happened in the spring of 2011, when multiple symptoms, old and new, started coming together in a crisis that almost led to me becoming housebound that summer. I discovered Dr Sarno and then this forum just in time, in September.
I had people in my life who assumed I was distressed about the divorce, but the truth is, it had actually been a relief to both of us, and I was pretty happy being single again (we had both been single until our mid/late-thirties). I realized later that my unhappiness in the marriage also provided an excellent Sarno-style distraction against what was really going on, which was fear and rage about approaching old age. Without the marriage distraction, my TMS brain had no alternative but to throw a whole bunch of physical symptoms at me.
All of which is in response not just to your original curiosity about doing the work, but also your further reflection about isolation. I have some further reflection of my own - see how they land for you.
Life as we know it looks a LOT different in 2025 than in 2011, and I think that it is in fact more isolated and more isolating. I had a lot of TMS success for several years after 2011, although I suffered two devastating personal losses in 2012 then lost my 93-year-old mother in 2014, who lived a very good and obviously long (and quite healthy) life - but you know, roots and all that. She was the last of that generation who was left and now it's just me and two surviving siblings (my favorite youngest brother died before he reached 60), and none of us had kids.
So isolation was already rearing its ugly head when I was only 63, and from my point of view the world started getting pretty ugly a couple of years later, and in the spring of 2020 I had a concurrent series of outside stressors on top of the pandemic which led me to a diagnosis of sudden onset rheumatoid arthritis at age 69. I consulted with Dr David Schecter, hoping I could treat it as TMS, and he said no, I had to follow medical orders, but that he strongly recommended therapy. So late in life I found a TMS-trained LCSW who could do out of state "coaching", and since the world has pretty much continued to go downhill since then, I'm still seeing her every two weeks, for the sake of my equanimity.
So in that sense, and in further response to your original question, I'm no longer navigating the work in isolation.
Your supposition about moving back to your hometown - for whatever reason or for whatever individuals are there? - leads me to raise a question for you, which is: depending on the relationships and the nature of the possible distractions related to those relationships, would this really offer the best environment for your recovery?
A question to ponder, as per the SEP! And a long reply to your very interesting question!