I think rebuilt titles are worth looking into. Really depends on what it was. My 3rd gen runner had a salvaged title. It was involved in a flood, and I never had an issue because of it. When I bought it I was able to get it for 6k less than the same year, and it on average had about half the miles.
The clear coat started going maybe a little earlier than the same year, but that could have been as much from me never washing it, or the first owner never washing it.
No funny smells or anything
Actually it was one vehicle I actually held onto for awhile, I go through cars like you do and I had that for about 10 years.
Pretty good record considering i've bought and sold about 6 cars this year
Not approaching your or cascadia's level though