They are the same from 2RZ/3RZ to 5VZ. As your local dealership if they have a 'shim bucket' as almost every Toyota ever made uses the same shim size, 28mm. They are some exceptions but you get the idea. Saves from having to special order them.

I don't have any experience doing a valve adjustment on a 3RZ but error towards the opposite end of the correction you are trying to make. What I mean by that is if the clearances are too tight (small) and if you have the choice between two shims, go with the one that makes it more open to give yourself more usable life out of the shim. DO NOT GO OUT OF SPEC in order to drop another size.

I also suggest doing the whole thing in mm and not in. The new shims will be stamped with the thickness in mm so it makes it so much easier. In fact, some of your intake shims should still have some of the stamp on them from the factory so you know exactly what is coming out. Still measure them though as they tend to wear down over time and not be exactly at 0.05mm increments. You might pull one out that is, say, 2.83mm thick when it used to be 2.85mm when new.