Combine and arrange text files

I am using the get-content and sort-object -unique cdmlets to combine text log files via:

Example text files are uploaded here.  The unique switch removes duplicates but it also rearranges the text lines.  I would like to have the single OK string be at the top of the lest in the final exported text file.  Do I need to save each line to a hash and rearrange that way first?