Hello Matt,
I am one who has rechromed EVERYTHING that is capable of being rechromed, including pieces that people generally said can't be done, or at least, "don't try". Perhaps I am indeed fortunate that all has worked out.
You have received somewhat accurate information as to how to remove the chrome pieces.
All the interior chrome can be removed. Nearly all of it can be replated. One peg on the casting didn't survive; we glued a similar peg on the back and it has held quite well.
The ONLY thing that I didn't replate was the actual louvers, or "vent-vanes" on the fresh air supply. These are removable as an assembly, and your best bet is to leave them intact. You can clean them in a degreaser solution in a ultrasonic cleaner and then polish them with Q-Tips. The vanes themselves, while indeed removable, can't easily be plated due to lack of adequate attachment points and their small size; at least that is what my plater indicated. If one gets lost or falls off the electrode into the tank, you are dead in the water.
On mine, the entire casting was replated; the defrost vent flap was removed and replated; the ring around the fresh air vent was removed and replated. These comprise the three pieces that can be done on the vent assembly. In order to do all this, I had to completely disassemble the fresh air vent. It was not a difficult thing to do; just need jeweler's pliers and tools, a good camera to record everything, and a lot of patience combined with a gentle touch. I found it far more difficult to remove a wheel that had been fastened with an air impact wrench.
Here are two photos to show you that it can be dissassembled. I took these photos as "evidence" for the plater of what I gave him. He marked and checked off everything on two sets of photos; I kept one set and he kept the other. One photo is of the three pieces that can be done on the vent; the other is the actual louver assembly intact. If you have any other questions you can post again or contact me off line.
Download Attachment: Louver Base.jpg49.15 KB
Download Attachment: Vent Assy.jpg40.4 KB
Michael Salemi
1969 280SL
Signal Red w/Black Leather
Restored