First Tundra - need advice

Looking for a Tundra for a "farm truck" want to keep it under $10,000 and 225,000 miles.
I have heard horror stories about bad frame rust.
So is it the original frame or has it been replaced ?
Then 4.6 or 5.7 ?
I would prefer the 5.7 and will consider the 4.6. No on the 4.7.
I would like 4 doors and 4WD.

I want something decent and reliable so any advice would be great.
Don't want a bumper car - all rusted up and dented.

I will only put 3-5,000 miles a year ( very small farm ).

location Turtle Lake Wisconsin area.

 

2wd or 4wd? 2 drs enough? Toyota = reliable - caveat being do your maintenance. Towing
Hay trailers? Or loading 2 yds of mulch and wood posts?
I’ve got a 2wd reg cab for sale with no rust. 4.7 recent timing belt. Basically should be good for another 400000kms with maintenance. Has airbags and rear is lowered making it easy to load bales.