I've just found out that I'm guilty of this.
I didn't get a notification about a reply that was made nearly 2 weeks ago so have only just found out by glancing back through the wanted thread.
I've got some of the ones with the 'double' lip for post march 68. I understand that you can fit them to pre march 68 but they need the matching drums.
I've had a look and have both types of bar and the flaps themselves along with the 'hook' that attaches to the thermostat. I may also have a used thermostat and bracket.