Bathroom Drainage/Vent Layout
I guess I'll answer my own question to the best of my knowledge thus far. 

The max distances from vent to trap have been clarified for me to mean from wet vent to trap, not just dry vent.

So the ipc code states that the toilet can be anywhere as long as there is a vent because it self syphons. I just have to reroute it so it doesn't drain past the tub downstream, which is also being wet vented.

The distance for the tub is within ipc spec as long as the lav's wet vent portion of ths drain is at least 2" in diameter.