I've been the owner of a 1969 Z/28 RS for 12 years now but only recently began checking the numbers and coding in great detail. I have been able to decode my VIN, trim tag, protect-o-plate, chassis broadcast sheet, engine stamping, and rear end stamping. They all point to the car being a real Z with the RS option, original engine, and original rearend. I'm sure the tranny is not original though as I could find no number on it that matched the one on the POP.
Here are the numbers I was able to get of the passenger side of the trans:
3885, then either a O, C, or G, followed by 10
Thanks guys for your help. I enjoy this website, read it almost daily, and have learned a lot about Camaros from the experts on here.