Looking forward to seeing the undead in 6mm- I intend to make my undead army a large project for next year, to coincide with a 6mm witch hunter army as well. Have you gone for microworld undead?
I sae your other post about terrain- I have started making some cardstock buildings as well.
http://www.brumbaer.de/Wm/Build/ I used these and printed at 66% and they came out really nice. I have only made up the smaller huts so far but they look great and they are free.
http://www.davesgames.net/catalog-free-models.htm have a couple of free DLs, and they are brilliant. You can change the scheme of the buildings on some of them before you print so you can make several of the same building but each one has a more individual look. Some of them have some more complicated parts- fiddly to make at 66% scale but they look great when made.
I fully intend to buy some of the building packs later this year, as I was that impressed with the quailty of the free buildings.
I have also placed an order with leven miniatures for a viking settlement and Saxon roundhouses- I ordered very late Monday night and they had got back to me with in half an hour! Very impressive! Once they arrive I intend to get some photos up on here as I think they will work brilliantly for 6mm fantasy.
I hope the links might be good for you.
Keep up the good work- I am loving what you have done so far!