The Rover-Landers of BC

In the second row in my 110, I have high back seat uppers (just on the right and left). I'd like to have the low back style uppers, so my seats can "fold and tumble", if ya know what I mean. With the current high backs, they can't tumble as they are too tall. I think (but could easily be wrong), that the seats and bases would be the same for our 1984 110 as a Series Wagon. I really only need the upper back cushion, and thought I'd ask here before I blow the budget on smaller seats! Hahaha.

What I have:

https://rimmerbros.com/Item--i-EXT350G4

What I'd like:
https://rimmerbros.com/Item--i-EXT351DGV

https://rimmerbros.com/Item--i-EXT352TC



Thanks for lookin'
Christopher.

If you're desperate, a Sawzall may do the trick :P

While that's true, I'm fancier than that, marginally.