Seidelmann 245 centerboard hardware

Looking for a diagram of the hardware that connects the line to the drop centerboard on our Seidelmann 245. Line is stuck and we’re going to raise it to repair but wanted to have materials ready. Or suggestions on repairing it.

I unstuck the centerboard on my O’Day 26, putting a flat steel bar about 3" x 1/8" x 4feet up in the space on both sides of the centerboard slot with the boat raised in a lift. I used a hard rubber mallet to hammer the bar edge back from the forward insert point to the aft end of the slot. a lot of barnacles and other debris fell out. the last couple of mallet hits on the second side and the centerboard came down unstuck. I also with a flashlight could see some barnacles in the cent of the slot after the board dropped and knocked them out with the bar & mallet action as well… jmc