T4R Off Road wheels?

So my suspension is bone stock on my 2016 sr5. I am going to buy the 4R trd off road wheels for it. My question is...what tire size can I go to get as close to flush with fenders without rubbing? Id like to stay close to stock diameter until I am able to lift the bish...

https://media.giphy.com/media/3oEjHWXddcCOGZNmFO/giphy.gif

https://media.giphy.com/media/KJ1f5iTl4Oo7u/giphy.gif

 

A bunch of us have 255/85/16s and it’s been a great way to get 33s on a stock 3rd Gen suspension (255/80/17 is the same total size but more wheel / less meat on the tires)…..with no trimming / chopping whatsoever.....and the spare tire fits under a short bed without having to move the bracket. Worth reading this thread to see if it holds true for the SR5 trim (I think it will)

https://www.tacomaworld.com/threads/put-255-85-16s-on-stock-or-wheels-and-suspension.491079/