I haven't tried it on a small scale yet, but I've been planning to go off in that terrain for a while. I've done some 1/6 scale heads in resin that have turned out really nicely, but never an entire figure in 54mm.
I'm thinking of doing some metal-casting. Is that what you have in mind?
Please keep us posted. I, for one, would like to see what you come up with.
Take care,
Mark