We used to have a 10.6 and if memory is correct the main hall floor is lino and carped with a transition strip between. I would be tempted to replace all the flooring with vinyl plank flooring You will have to source some thin moldings to terminate around the basement hatch. Possibly some L shaped pieces the would cover the plan flooring and return down in the opening. Perhaps there is already such trim terminating the carpet that is internal with the hatch that could be reused?
For the carpet under the dinette the best way to replace would be remove the dinette benches and replace the carpet complete. This probably how it came from the factory. Less work way would be to cut the carpet neatly around the dinette benches and use a base molding to terminate it. If the carpet rolls under the edge of the dinette you could use another metal or wood termination strip or just staple it if it is hidden from view. Some sort of termination molding if possible will help to keep the carpet from fraying.
We went with the vinyl plank flooring and used window screen molding for base termination on our AF1150. Came out pretty nice. We didn't tackle the carpet. After this picture was taken we gave it a thorough stem clean and it looked great.
![](https://i.imgur.com/TBzQbN7l.jpg)