Looks like it could be a later barrel.
The first job is to soak everything in penetrating fluid for a few days, then carefully strip it down.
Before you can take the engine anywhere you really need to know what condition the crank is in and what grind its on before you can ask anyone to do work on it.
Same with the cylinder and bores, otherwise you are taking it somewhere only to have the guy phone and say - bring me another crank or cylinder.