Is the swivel chair on a raised box (many are) or is it directly on the floor of the MH?
Since you'll be putting another chair over that spot, I would think you could leave the connectors that hold the swivel chair, and place a rug (if the floor connectors are flush or near flush with the floor) over them and under your new chair. Or if the connectors are taller, get a new chair with a skirt to it to hide the connectors. Since the chair is over the connectors, you won't trip over them.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)