Thank you so much for your fast consideration on this issue. The stanchion connects at the break in an upside down "T" with the shelf behind the wood. I will send you more photos What I am thinking first is the somehow compress the stanchion back to home ( with the chain plate disconnected or...
I bought a 23 ericson 1976 mk 2 and found out the wooden bulkhead that anchored the chain plate was rotted so I replaced it by splitting the 1/2" marine ply so it would fit in and then bolted a plate to make the bulkhead integrated. I then glassed in the front and back so it would not happen...