Larson Screen Door Moulding (Spline)

We attempted to order moulding for the outside of our Larson screen door, but unfortunately the part we got was too narrow.  We need a 5/8" moulding and when speaking to Deb, from SWISCO, she said there was no part available matching that size.  She advised us to contact "Part Identifier."  I've tried to attached photos many times and wasn't successful.  Is there another option that I can send our photos?

We are in need of new rubber outdoor molding for our Larson screen door, however, we are unsure what molding to order. We are hoping you can use the free identifier to let us know what to order. 
 
Our door is 81 inches high and 39 inches wide. The way we figured it, we will need approximately 17 feet of this molding. Does it come on a roll?
Attached are pictures of the current molding and the door. 
 
Thank you very much.
 
Karen