HELP with suspension questions from those with KNOWLEDGE!

I have a '13CM and looking to get 3" lift in front on a budget I plan on going with the Toytec / Eibach coilovers set at 3". I would like to run 285/65/20s (34.6") on stock wheels. The tire shop had a concern about clearing the stock UCAs with that size tire. But have been told that as long as I stay under 11.5" (width) I should be okay.
I'm hoping not to have to really modify anything else for those tires to fit.

So my questions are, is anyone running a 3" lift with those sized tires and able to clear the stock UCAs without a problem?

Also, will I be able to get a good alignment with the stock UCAs?

All is relatively new to me so any information would be greatly appreciated!

 

Lots of knowledge here:

https://www.tundras.com/threads/largest-tire-you-can-run-stock-for-all-generations.9762/

 

Looking for those that have actually done it. It shows I can get away with 285/65 but sure would like to see and hear from those who have and pics.