That's all well and good, but it doesn't fit with this bike. The DS chainstay is chromed with just a small portion of the seatstay, and basically only the dropout is chromed on the NDS. There is no chrome on the rest of the frame.
On other bikes I've stripped, you could basically draw a line across the frame at the stays, fork, etc, that would represent how much got dipped into the plating tank. If you try to envision the dip for the exposed parts on this frame, you'd still have to come back and do the BB shell by itself. And it's nice and shiny, just like the chainstay.