so, i seem to remember someone had a couple of Dark Age Skaard as mutants in a Retrospective somewhere (sorry, can't remember who :( ) and noticed Arcane Miniatures (http://www.arcaneminiatures.co.uk/clearance.asp?offset=0) has the 2 Golabs for a couplea quid each (!) and the 2 Raze for just shy £10 each (down the bottom and top of the next page)
i seem to recall they're about the right size for generic mutant grunts :)