Not to verify the dolt that I am, but what is this cabin top strap you all are refering to here. The previous owner did make some changes to 113 but I see no evidence of 'hardware past'. Any time I find a picture of one of your Ariels or Commanders I study it for days and I just don't recall seeing anything on the cabin top that I don't allready have. Of course, pictures would be helpful.
Very sincrely, The Dolt