Seems that resources around Abernathy farm are quite limited. Found the place at level 30 after doing lots of quests.

Do merchants with "Shipment of" restock after 24 hours, like all Beth games?

I hope this is the case, otherwise my post-apocalyptic Victorian mansion will remain unfinished.

You'll have to supplement the farm by doing some looting of your own, it seems.

Just found she does restock, good news. Can just keep on waiting 24 hours, good old gamesas remain trustworthy as far as in-world economy. Thank God. Now I can build...