Autogen Replacement

Now SP1 is in and I'm taking advantage of what seems to be a 100% improvement in performance (!!) there's something I'd love to see changed. I still quite like the Autogen because it gives depth for low level VFR and now I'm able to have tonnes of it, but for the UK it just doesn't look right. The cities are ok -- but small towns and villages are lots of white houses with red rooves. We need red brick houses with grey rooves. Does anyone offer replacement autogen models for the UK -- not textures, autogen, that might make it look more realistic? Is this possible?