goldenroads, I know this response may be too late for you however, maybe what I specify will help others.
I called RV Direct in regards to the recently ordered Octane TH specified in the signature section to add the party deck option. I was asking what all is included because I was thinking that only the support cables and railings may not be the most cost effective option out there. The rep. thought that the rear door ramp was reinforced in some manner so I asked her to please contact Jayco to confirm. She did so and specified that the door was reinforced over the standard door in order to accommodate such a use. To me such a confirmation secured my decision to go with this option even though the business experience I have acquired over the years is telling me to trust but verify, know whadda mean?