If you think something is unique you might try using Waves Q-Clone to in principle make an IR from it. But if there are any options for thirdparty stuff there - don't know, it might be.
Others that use similar technique is Nebula, as I understand it - some kind of morph technology for many IR's so you also can emulate non-linear stuff.
I also have seen third party presets for Nebula, but if protected, don't know.
There have been lengthy threads at KVR over Bricasti Reverbs - wanting VST effect for those. But it seem to have some special modulation things going on that are hard to trace down what it is. So if somebody come up with a plugins chain that emulate that - could be really attractive.
There are IR's and they are also allowed by "mr Bricasti" himself knowing they can never do what his hardware is doing.
I think some of it was on topic....