Removed timing assembly before setting TDC need help!

Came to the realization that I should have set tdc before removing timing assembly how can I find tdc on my 3ur-fe

 

This is what happens when you let "billybob" work on your truck....

 

I don’t know off the top of my head but don’t worry. Its doable. Nothing is fucked here dude.

 

I just need to know how to find tdc like which piston will I be focused on?

 

Drivers side front is number one

 

What’s the best way to know it’s at tdc without having a borescope

Edit: also I do not have a piston stopper

 

They make a TDC whistle....pretty cheap

 

Put a short rod of wood or plastic in the spark plug hole, then as you turn the crank pully watch the rod move up and back down. Make note of where it peaks and heads back down.