No, I think it's the big one that covers all the ports.
https://moyermarine.com/product/mani...t-gask_08_147/
It will be a pain for a beginner, sorry. Lots of rusty bolts and blood
But, yes, order that one too. They are all old at this point. The folks at Moyer may advise better which ones to get.
I'm off to work now, bye,
R.
Edit:
This is all assuming I am correct in thinking Neil is right. YOU should confirm this leak yourself.