Suggest you look at the LTR VISA... sounds like it's perfect for you. A 5+5 = 10 year Thai Visa.
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The LTR is a great visa and the category that is most subscribed to is the WP (Wealthy Pensioner) category. As you're already over 50 you could qualify for that category. ..
You apply directly thru the BOI (Board of Investment) LTR website. The process takes about 8 weeks right now to get approval. Then you schedule an appt at the LTR office down in the One Bangkok Building, they ink in the 10 year visa, a 5 year admitted until stay and a 5 year multiple re-entry permit
You do not need to use any of the people who advertise hawking the LTR (although if you're interested in that you can look on the LTR website for the approved companies)
Here's the website;
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Here's the number of LTR's issued based on category too
and here is the LTR official facebook page
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