I admire determination, but when it gets to handwinding the coil and still needing parts, a 52E, or any saw, isn't worth the trouble. Waitibg for needed parts to complete a project sometimes means it's best to set it down and walk away until they show up.
52's are on the rare side, as the 49sp outsold it by about 10 to 1. Performance was close, but not the price. The significance of the closed port cylinder on the 52 is over rated as usual here. I've got a few of each and they all run about the same. Few here are more into the old Jonnys than me, but I'll give Robin the edge there.
@Cantdog.
Finding individual parts on old saws is best done by finding complete carcasses that you can strip yourself. Those coils rarely failed, so in most cases, they will still work on an otherwise dead saw.
Have a similar situation going on myself with a 2051 project. PTO seal is unique to that chassis, and not shared by any Huskys either. Not a popular chassis, and wasn't around that long. Sooner or later it I'll stumble on one.
All th