For woodwork, local sources are probably best. I bought 5 mediums, a bottom board, a top cover, and 60 frames recently and the shipping from Montana to Washington was over $60, which was WAY over the top, in my book. I shipped more weight from here to Texas last fall for that. A three pound shipment of unrelated items totaling 3# was $10.38 from Oregon to Washington. That's insane.
I've seriously considered making hive bodies/tops/bottoms as a side business - I have a portable bandsaw mill, a woodshop, and an almost endless supply of douglas fir (I live on 30 acres of the stuff, plus alder, maple, cedar, etc. I wonder if you can make hives out of cottonwood? AKA Black Poplar?). I'm certainly not buying any more hive bodies for my own use! If I can figure out the jigs to make frames in large quantities, I'll probably do that as well.