I've been wondering how/where Toothache was looking for those unknown factors in RS. ("Ferocity" being an example one of those factors that's not known IIRC, no?) Theoretically, anyone with experience using the rm2k programming language and a fairly methodical mind would be able to construct a battle system with hard work, once the equations and working structure are known.
Assuming Toothache is out (and we don't know what, do we? He may be idling, but perhaps all he needs is a good tap on the shoulder) are there are any places you can go to 'advertise' for someone to help out with systematic rm2k coding? Like, an rm2k forum or some such? I know someone in another community who needed help on a 3d real-time adventure (like realMYST/Uru, for example), so he went to some forums where some 3d graphics/programmer enthusiasts hung out, and asked if they'd be willing to help code an engine. (He went to 2 forums and successfully recruited 2 people from each for a total of 4.)
Of course, this would be a big project and probably not something you could put on your resume... still, I suspect there's an rm2k coder out there who could pick up any slack. I suspect that when it comes down to it, the central structure of the battle system won't be quite so complex as we'd imagine, and it'd mainly be a matter of adjusting the battle system methodology for special cases.