Nemrod Snark III Double Hose LP seat assembly?

[Fibonacci]

Continuing my Nemrod Snark DH reproduction parts, I'm now looking at the LP seats...

These are co-moulded around a metal shaft and X shaped stabiliser ribs, and I need to understand what this substructure looks like to create accurate RFQ drawings for the metal and co-moulded rubber parts.
Food grade silicone rubber should last longer than the originals.

However all of mine are still in serviceable condition and I don't want to cut one up!
Anyone got a trashed one they can either send to me or remove the rubber from and accurately measure please?

My 'guesstimates' below:

 

[happy-diver]

You're a genius man I wish I could help

 

[Skip Y]

I have one that free flows. Let me take a closer look at it. Fibonacci I love my Snark 3's. I have about 10. If you're reproducing parts for them we are going to become very good friends

 

[Fibonacci]

I gotta get out more

Snark III front 2 web by fibonacci101, on Flickr

Snark III rear 1 web by fibonacci101, on Flickr

 

[Gone for diving]

That's way to shiny,,,,
need sunglasses

 

[Fibonacci]

That's way to shiny,,,,
need sunglasses

Fixed

 

[Fibonacci]

Found one to pull apart!
The X piece appears to be a bronze investment casting, with a stainless shaft crimped into it... then the rubber co-moulded around it.
Which makes sense for volume production.

 

[Fibonacci]

Revised Carrier ASSY