Update - Been very busy and have not had much time, but getting back to it now.
Still basically the same, but ordered new petcock (ebay), and new tail section and exhaust from carpy.
when tail section shows I'll be mocking it up, then ready for tear down.
Need to get new tank cleaned, think I'm going to try vinegar first, it's in pretty good shape.
I also need to find a source for TEC points/condensors to replace the Diachi ones, then I'm going to get Hondaman's ignition.
Anyone know where to get TEC points?