H & R EARLY MODEL SCHEMATIC.

Does anybody out there have a parts breakdown or schematic for the very early model 922 H&R 22 revolver? This one has the flat mainspring, and octagon barrel. I've checked several places and they only list the later coil spring model. I need to see what is missing from this basket case, and could use a parts source too. Thanks alot for any help. I'll gladly pay a reasonable fee for the schematic.