ALL SE6 onwards will fit ALL cars.

My factory parts list only shows Two numbers for the SE6>, plain and tinted.

Where the Chrome on brass fitted to MB has come from I don`t know, most of the SE6 frames I have come across are SS, may be that the SS supplier had shut/refused to supply low numbers?,

ALL the SE5 frames were chrome on brass and when the SE6 was introduced Reliant made a decision to cut back on expensive to supply components, this is widely publicised in the Reliant development histories, so they moved to thin steel pressings/mouldings for Glass frames

My last Anti Rattle block went to Mick, but it was basically a Triangular plastic moulding with a groove for the Top Hat of the pin to sit into.
Had a look today and I have quite a few rear hatches, but ALL S/H and All SS for SE6> or Chrome/brass for SE5