I am putting down 8mm thick, cork backed Fuzion LVP in my basement. I also want to finish the stairs. I am looking for advice on what should be done with these stairs prior to LVP. The stairs are 4 down to a landing, turn right and down another 5 or so with small landing at bottom. The first four stairs from upstairs are concerning as once I removed old carpeting, there were multiple layers of vinyl, some of which I have not removed as not sure what they are made of in regards to asbestos. The stairs, hence, are not flat with old adhesive, flooring and tend to slope downwards and are 9.5 inches deep on the tread so I'm wondering what advice there could be to get these ready to be covered with LVP. Ideally, I wish the tread could be wider and not sloping downwards but not sure if this is possible without rebuilding. I'm not sure they could be rebuilt without tearing up basement underneath which was just recently finished but perhaps there are options from above. I am including a number of pics to give a better picture including both the top concerning stairs and the below ones which appear to be in better condition obviously rebuilt in the past. Thanks in advance.