Pegasus models are made in China or somewhere, which means that they are often out of stock in wargame emporia. But they are good stuff, by which I mean that they are easier to build than DIY foamcore buildings/ruins and much less expensive than GW's CoD kits.
Anyway, I've found another supplier
Who appears to carry the whole lot. Which is nice. And a lot of their stuff is aimed squarely at WH40K and it's peers/derivatives.