Jay, did you ever get any answer on that, lately I have been backing up to my slip and would love the idea to be able to get in using the stern. What model do you have? A mk2?

Did you look at something like this?

https://www.ebay.com/itm/Marine-Boat-Foldable-Wooden-Step-Aluminium-Gangway-Passerelle-98-5-250-cm/132985124333?_trkparms=aid%3D555021%26algo%3DPL.SIMRVI%26ao%3D1%26asc%3D225086%26meid%3D4907387ba1534dbbb34063dece0d8157%26pid%3D100752%26rk%3D2%26rkt%3D15%26mehot%3Dpf%26sd%3D303607227174%26itm%3D132985124333%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplRVIAMLv5WebWithPLRVIOnTopCombiner&_trksid=p2047675.c100752.m1982

Hi,
I'm in the process of installing a gangway on my C36 MK1 open stern.
i have already order a light one made out of composite.

My idea is to remove the actual swim ladder and fix the new gangway on the open transom. I will add a foldable ladder on the swim plataform.
Also add 3 life lines (dyneema) to close/open the transdom.

Previously, I was using the swim ladder to access the boat. I added some remouble wooden plataforms between steps.

Will see how it works 

Eladio;
 We did exactly that on hull 1041. The boarding ladder made it difficult to board the rubber inflatable dinghy when the boarding ladder was lowered in to the water. I removed the ladder but kept the hinges in place. I ran a length of stainless steel chain from the hinges to the ladder locking clips on the upper portion rail, very much as you have done with the dynema line. We will then use a folding ladder on the transom when I need to enter the boat from the water.
My concern was that, since I am alone much of the time, should I fall overboard - there is no way to pull the factory ladder down in to the water and re-gain entry back in to the boat. The pull down ladder, mounted on the platform of the transom, allows me to pull down the ladder and get beck in the boat from the water.
Although the boat is currently on the hard, I'll try and send along some pictures in a few days. 
Bill

Thanks Bill,
I will very much appreciated to see those pictures. What sort /  brand for the foldable ladder did you installed?

Best regards,

Eladio

There is a fellow in the boat yard that made his own boarding gangway platform from two Harbor Freight aluminum painters work platforms joined together end to end. He apparently used the legs of the platform to serve as pieces to join the two sections together. He says he's been using it for years. https://www.harborfreight.com/40-in-lightweight-aluminum-work-platform-5...

Just a thought......Bill