69chevyCST

First swap, looked for answers and just wanting clarification.
I have a 5.3/4l60 from an 04 silverado. Engine supplier I purchased it from sent bits and pieces, my fault for not listening to suggestions here on the board.
After scrounging through everything and referencing here and lt1swap here's what I got:

04 5.3/4l60 With "dbw"

With the 12200411 pcm

And red/blue wire harness

And 2 pin throttle body on passenger side and 6 pin on driver side

I have the 12573059 tac module (metal backside) and pedal, all connections click together.

The questions I have is can I run the 04 engine/trans with those parts- 411 pcm, red/blue harness, throttle body and tac?
Or does it have to have 03+ blue/green wire, pcm, throttle body etc to run the 04 engine?

If I read everything correctly, mostly from lt1swap info it seems the only thing that wont work is the tac module with the rest of the set up(everything is 99-02 compatible and the tac module is 03+ and they dont work together)?

I just need an all plastic 12574221 or 25173339 tac module? Can I use the same pedal?