Hello Camobunker

The liner is perfect
For the Shell, it is a 2d type. Most probably refurbished if we look at the Chinstrap and also du to the lost maker stamp. We would need more picture to figure out.
The color still seems to be brown and not green as they use to do later with the anti infra red peint.
In that case the liner could fit with but has said they were provided separately

Hope this help