Difficult to tell that far back. Would need to see a pic of the boat to tell.
Generally...
37+ sedans with forward bulkhead
32 sedan (sliding glass doors) had no forward bulkhead until 1985.
32 express (kind of looks like sedan but no sliding glass doors) never had forward bulkhead.
32 fishermen is mostly cockpit with little door and hatch to get into cabin area, no bulkhead.
28 fishermen, similar layout as 32 fisherman with little door and hatch and lots of cockpit, no forward bulkhead.
28 express, similiar to 32 express
28 sedan, not sure about forward bulkhead
28 sportsman (bridged and non bridged), like a 28 fisherman but cabin is open except for v-berth door, designed for work/fishing.
32 grand sportsman, cant recall forward bulkhead but was designed for fishing, no bridge but had a wind deflector on cabin top like you see on a truck. Only hand full of these made, I'm told.
There was also another 28 or 32 model that looked like a fisherman but it was more decked out for fishing. I think it had higher freeboard. I don't recall what the model was called and only have seen 1 of them.
I'll have to put together a photo guide one of these days. It difficult to explain in text.
-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors