1999 2.8 motor quest
 

hello just picked up an 99 a4 s line 2.8 quattro 5 speed stick. i bought the car for a track car. need to know about the motor and trans, like what years and modules does this motor come in and is the motor the same in the autos as it is in the 5 speeds (my rx8 for ex, my 04 rx8 the motors are not the same in stick and auto) and 2nd the trans if i find another 99 a4 thats and auto w good motor will my 5 speed bolt up to it and will my ecu run them? will all wires hook up as norm or will their be a lot of rewireing? i need to have 3 extra motors and trans ready to drop in and go track side. thanks for your help