hmmm, I am a bit of a converter myself and looking at the centaur
and a chimera
I think a fairly nice looking centaur conversion could be made from a chimera model, with some plasti-card and some sawing, its very do able.
WHOOPS! brain fart, I mis-understood, you want to use Centaurs
AS Chimeras..hmm ok that is different, do as theCaptain said, just play
DKOK you may like it..
I may try and make a few centaurs now that the gears are turning