Wow, okie dokie...
Pretty sure you listed all the het BELs... And yeah, they would all have a 25% chance of producing a BEL if bred in any combination with each other.
As far as "What are specials, and mystics? How do they work? What do they look like?" Goes... Mystics are a morph... Specials? I'm not sure on this one, maybe someone else knows what "Special" bp you might be referencing.
The original Platinum was imported by RDR in 1999, and the offspring it produced were called Lesser Platinum because they weren't quite as ...Platinum... as the... Platinum... Erm... In any case, Davis theorised that there was something else involved in the genetics of the original Platinum, perhaps a simple recessive morph as well as the Lesser Platinum gene. Anyways, Lesser Platinum is now a well established morph, and as far as I know (although I learn from that there "intarweb" so I may not know much) there is only one "Platinum"; the original RDR import.
Um, so now we went back to the mystics... And um... It's sorta like the Candy and the Toffee, if you're familiar with them... Two morphs that look an awful lot like one another but that haven't been tested much to prove it (last I heard it was decided based on the Toffee offspring that the Candy and the Toffee are most likely one and the same). Or so I understand it.
You didn't miss any, unless some exist that we don't know of yet (or I am unaware of, but I HIGHLY doubt it, because I asked Google, and Google knows everything.)
I guess the moral of the story is, Google is great, and posting a bazillion different rapid-fire questions on forums is less great. Hope this helped clear up some confusion.