Gary,
The suspension is designed to carry the full weight of the car. If you are busy with a full restoration, the car will not settle to its normal stance untill all the components are fitted, including fuel, oil, etc. Therefor the rear axle will not settle untill the restoration is complete and the car driven for a few meters.
In any event, the Pagoda is so designed that rear camber should be set at about 1 to 2 degrees +(IIRC). Which means that it should stand with the rear wheels slightly tucked in, at the bottom, ie positive camber. It is very little and hardly visable. A squatting rear end is called negative camber and will impede handling.
Set it up as best you can, drive it a few 100km and reset.
Regards
Chris