What a Tanker! West Front Terrain

I'm  not going to get very far with this?

With the imminent arrival of some US tanks and tank destroyers to the workbench, once I've finished the last of the Russian and German tanks, I've realised that I will need to have some winterised terrain for the Ardennes, Rhineland and Reichswald. I don't really have anything to hand apart from some cheap vacform kits that I got at a car boot sale last year, an old Airfix Forward Command Post and a few loose bottle brush fir trees that I had in the scenery box, so I need to add some new terrain to provide intervening obstacles and ambush cover.

I wonder how easy it will be to make these?

I've been looking around for something 'off the shelf' but most commercial buildings and wall sets are too expensive, so I think I will have to rely on scratch building some suitable shelled and battle damaged houses, together with some other rural clutter. I will also need some roads or tracks, although they don't make any difference when it comes to movement. I'm sure I can come up with something that looks half decent, given a bit of time and lots of cardboard, filler and PVA? I'll also keep a look out for any good laser cut mdf buildings, as the ones I've seen aren't that great.