I have pics of the MAG21 '94+ and MAG20 already for this purpose, have done for a while, I just need to remember where I put them, lol.
Even down to the inside damper rod being taken out.
The quadra looks quite simple, but a Mag is a lot more difficult, because of the damper. Just like the SID damper. Is is quite impossible to show how it works, without oil in in.
I'll also do a Judy damper cartidge.