Two powered units on orange Kato TGV? Any differences between old and new versions?

[80skatoguy]

Will two powered units work on an orange Kato TGV? Front and back.

 

Are there any differences between the version in the horizontal box (from the 80s) and the version with the vertical box, or are all the parts interchangeable.

 

I have a TGV that my aunt gave me in the 80s but it is in need of a few repairs so I was thinking of getting a whole set, which would leave me with two power units.

 

I already have a 4 car expansion set that I picked up at a train show for a good price in the 90s or 00s.