Howdy everyone,
Whilst looking at building kits for my cousins model railway layout, I have come across this program.
It looks like a good little program to design building kits of your own via your computer and than print them off and make them your-self. Now with the ability to modify the scale of each item, I imagine you could get it quite close to wargaming size with a bit of know-how.
http://www.modeltrainsoftware.com/model-builder.html here is the link to the site for those interested.
I hope it helps someone and I hope it is not a repost...
I should point out I am not affiliated with the program creators