Non-OA requires a health insurance at aprox 35,000 pa with little value and benefits. It also requires a medical and security check. Non-O simpler, cheaper and more flexible. I was attracted by the way it gets extended when returning to Thailand (along the validity of the insurance policy) but at the end applied for non-O in home country (which also simpler and cheaper than applying in Thailand).
they responded within a day with the query but than approved few days before i left … as i assume the date of approval starts eating into the 60 days within which you need to present at the immigration entering Thailand. I would say 2 weeks ahead of departure plenty of time. I did try to apply in-country during a previous visit and unless you do it through the agent (starting 35,000 for non-o + extension) it was quite demanding on the documents to provide. Applying non-o in home country is much easier (£60) as is the extension thereafter (1900 baht/ £40).
Italian property is much cheaper than french (even cheaper than in Thailand in some places). I adore Puglia and Sardinia but i do not intend to stay anywhere long enough to become a tax resident. International nomadic living can be very interesting. Japan is now also a very good value for money.