Carpet (Old Woking GU22)

Hi. Having moved home some of the carpets are soiled, damaged and/or worn out.
I must replace the carpet in my son’s room (he’s 5y.o.) as a priority.
I request if someone may be replacing their carpet any time soon, and that the old one could be a great improvement upon our existing?
The room is a little under 3.5m x 3.5m.
I wonder if someone’s replacing a larger carpet that’s been destroyed in one area (a corner or along one edge)?
Pics show the sort of marks in his room AFTER running it over with a VAX I borrowed. The burned areas have been melted in various shape (iron, streaks, blobs).
It’s v v lousey at present.
I’m able to collect practically any time to suit.