Consolidate clips in a timeline to create a TK roll

Hello
I have received an .xml timeline file from PP 2020. The genius offline editor dumped a load of cuts into the timeline, most of the clips are duplicate rushes of different lengths.
My goal is to consolidate the timeline clips to create what used to be called a TK roll with each clip having 25 frame handles. (TK roll is a sequence that has the longest length of rushes need for each shot for a colour grade.)
I don't have the media, so a media relink and timeline consolidate will not work. But I figure that there must be a smart way of doing this.
Any thoughts most welcome
I have received an .xml timeline file from PP 2020. The genius offline editor dumped a load of cuts into the timeline, most of the clips are duplicate rushes of different lengths.
My goal is to consolidate the timeline clips to create what used to be called a TK roll with each clip having 25 frame handles. (TK roll is a sequence that has the longest length of rushes need for each shot for a colour grade.)
I don't have the media, so a media relink and timeline consolidate will not work. But I figure that there must be a smart way of doing this.
Any thoughts most welcome