Wow eth0s. Just wow. You have my three favourite clacks, the only three I truly want. The red transparent, silver w/ red eyes and OG tricolour. You have an amazing collection.
Wow, your eyes must be really good. I can't believe you saw all that in those pics.
Here is another pic u might like:
OG Tricolors are out there in some pretty good numbers, and while the demand is high, your chances of finding one are high as well. But you will almost certainly have to pay some serious $'s for it.
Ruby Red translucents are out there too, but they are much rarer. But again if you are willing to spend some $$$'s, you can get one.
The silver and red eyes skull is called Terminator T3. And it's extremely rare, AFAIK. I have only seen one other one actually. I have no idea how many were made. So getting it will be quite difficult. (But not impossible).