heater box / air box j hooks , hangers??

probably not enough call for it so the aftermarket doesn't bother with making them. You could make one with a few small details. The main thing would be the thread length so it cant be overtightened.
I don't have a spare one to offer but I could provide its measurements if you want.

Appreciate the get back..... I was thinking about going to the hobby shop and just getting a few pieces of pianno wire and doing just that. It won't rust and they sell it in the same diameter. I still have the driver pieces although they are badly rusted. The passenger side I will have to make any way since I had to make a new "vent ring"? inside the cowl and it was a little taller than the factory one.