Contact Tony Cheung or Kenny Tran @ Jotech Motorsports 972-278-9744. They are experts when it comes to building FI motors. They also have a ton of experience with Toyota products including the 2AZ-FE. I would definitely talk it over with them.
You could run the meth injection system in conjunction with an FMIC. Kenny is not a fan of them simply cause they carry a limited supply of meth juice and could lean out the motor if the tank is dry. That is why you have to have one with a built-in controller that has an output to run to your stand alone/piggyback/boost controller. No juice then it pulls the timing and drops the boost. That is what I have and also putting in a reserve tank w/ indicator. First tank goes dry then it has a 2 quart reserve that will last a tank full of gas. It only works on WOT so all you have to do is keep your foot from crashing hard on that gas pedal.
As for A/H beam rods, I would go with the lighter setup if your not looking at going over 300WHP or shooting NOS. tC's regularly are driving on the streets boosting to 300WHP on the stock rods. It is the Piston Ring Lands that will go first so a tough set of slugs are key. Porting and polishing is always good thing to look at when building a motor. Only problem is that till you begin boosting or run a large profile cam, the gains are minimal. This should be left to a professional who can either CNC or at the least has a bench test flowmeter.
Looks as if your going to be boosting so you will need an exhaust to match. If for sure it will be a turbo, then 3" high-flow exhaust is key. If S/C then stay with 2.5" highflow exhaust.