Zone VI bag bellows models

[Ginette]

I have a very nice Zone VI 4x5 camera that I wish to sell as I don't use it.
I have also a bag bellows, the older model, the one with the pleated section whitch have the reputation to get stiffer with age. This is the case of mine, it is really hard to remove and install the bag on the camera.
I bought a Sinar bag bellows from a member here with the intention to mount it on the Zone VI frames.

My interrogation is the following: is it better to let the pleated section in place and replace only the bag section?
Can someone post a picture of the second generation of the Zone VI bellows. Is it only a bag or it still have a pleated section?
Thanks for the help.

Ginette