that is it mate, the early ones had a remote ISCV the later ones had it on the side.
the throttle cable brackets are different as you say but cant see any reason as to why but there interchangeable, and yeah the plug for the ACT senors differ, as the 2i uses the same sensor as the ERST does and the FRST uses a bosch one, that is it, the rest is the same, injectors, throttle body the lot, the FPR may be set a little different for the turbo cars but thats about it, but there adjustable anyway so that stays the same