So, instead of buying a brand new 700H OT (or any other regular 700H), you are contemplating buying a used 65k miles (crazy miles for a 2/3 year vehicle btw) that you are certain is under the recall and might have the bearing issue? Unless the LX600 is priced as a Camry and/or you do not want/have the means to order the 700H, this does not sound like a smart move in my book.
Since you said you are not off-roading it, I am not even going to mention the tremendous leap of capability the OT is when compared to the 200, but even for a pavement princess, I would just look for a very lightly used 700H in any other trims, before going the used 600 route.
Big caveat to all this. If you need a 3 row or values cargo space, just order a 2row OT or a brand new 600 then. Any brand-new LX you order will be covered by a 6-year power train warranty anyway - recall or not.