Looks as though the keel was once a drop keel and has been somehow sealed over? I don't know much about the Pegasus, but would have thought it was once a trailer sailer.
They are very much at home on the Broads.
The other one isn't a traditional Broads Cruiser as such, there is an A frame on deck. It looks too like the outboard went on fire at some point, but the boat saved.