John,
I asked these questions as they came up when they were judging the cars at the 50th.
Correct, someone said that the metal tire valve stem covers not the plastic ones were correct for the Pagodas.
Also that all, repeat all fitted radios were fitted with Hirschmann (power) antennas.
There was much discussion in the car park on two or one shock tower cover. The open side of the engine certainly but the manifold side of the engine apparently, according to some, did not have the cover.
On the rubber boots, it appears that the 230's only had the distributor covers and not the coil. The two covers appears to have been introduced somewhere in the mid 250 production but I dont know when.
On the gear lever length in the Autos. I have seen several of both the short and longer stems on the 230's. I cannot find out if the short ones, (in the minority) are original or that they have been shortened/cut at some point. Mine is short but looking at it without the knob on the end does not show that it has been cut. It is 100mm (4") from the top to the gear indicator cover.
Garry