I am following this closely as I doing a HG restore myself. A couple of questions:
1) The ball save gate on mine was disconnected and manually forced open. I cannot find the wire which is supposed to go to the switch on the gate assemble. Please include details on that if you can
2) I noticed you are putting CAPs in a lot of places which I am not sure are as original. Are they original spec or your own mod?
3) Do you end up not using the original head as I see one in the background?

Thanks very much for that info Vid!