Hi gm28,
Welcome to the Heartland Owners Forum and Family. We have a great bunch of people here with lots of information and all willing to share their knowledge if needed.
I think the carpet is just stapled down over a thin pad. Should not be hard to replace except for the slides. If you do not have carpet in the slide with the outer edge loose and bound, then you will see the crack where the slide and floor meet. You could put laminate or such in the main floor area easily. The slide area could be measured and go to carpet place and have them cut and bind the edge that would be covering the slide joints.
I'm sure others will join in and give their ideas also.
Enjoy the forum.
Jim M