Agree with MMM except for I'd put the silk farming earlier in your plans. Usually I kill 2-3 tier 3 spider dens just before the first winter, and one or two more during the first winter. 3-4 spiders' dens a few screens from your camp should meet your silk needs as long as you make sure to pop them when they are ripe (between 15-25 days after you replant them). I usually put my pig houses as a buffer between my camp and my spiders and that way when i come back from a trip theres always a few silks and occasional pig skin just lying on the ground for me to pick up.