Also, look into using some lumber for skiddable structures and animal shelter. Making some shakes out of short stubs of big logs is pretty practical and sustainable -- just update the old building techniques building with a modern pneumatic staple gun!
Where the land is flat enough, design you silvopasture planting to be able to pull structures through it without going through ditches or hazardous slopes. Usually with a 20' grid spacing, you can go through both directions with ease.