1/300 Starport Terrain

I just joined the list and have a question I hope someone from the UK
can answer for me. 

When I was in the UK last year, I attended the w.M.M.S show in
Birmingham. There was a vendor there selling 1/300 science fiction
terrain. Of particular interest was a starport complex, which I'm still
kicking myself for not buying. I'd love to identify this vendor and see
if I can buy this terrain still.

The starport consisted of low buildings with very sloped walls, 45
degrees or so. Kind of a cross between bunkers and civilian structures,
I guess. The demo model was painted gray with yellow and black stripes
in the landing areas. The tops of the buildings were pretty flat, and
all the buildings seemed pretty rectilinear IIRC.

Pretty vague description, I realize, but if it sounds familiar, I
appreciate any information I can get.

Thanks,

Cary Hocker