The part #'s for my 95 E300D W124 I believe are:

124 800 29 75 left side recirculate/fresh air flap
haven't found one yet

124 800 30 75 riight side r/f air flap
On order from Park Place Mercedes

124 800 03 75 diverter flap
On order from Park Place Mercedes

124 800 02 75 center vent flap
found on Pelican parts

124 800 26 75 defroster pod
found at ******** cheaper than P parts
a u t o h a u s
124 800 09 75 lower footwell
so far only found used

201-805-01-03 Connect vacuum Tube to pod I believe hese are short right
angle ones,
One parts website diagram shows there are (9) of these
used for vac
pods 500E site say's 10-12 of them

201 805 01 22 'Y' connector 500E site says 3 of these I'll try to order these

The following 500E tutorial has pictures and good commentary:
5 0 0 E b o a r d
https://www.*********.co/forums/threads/how-to-replacing-w124-climate-control-vacuum-pods.1349/