i get my rock maple veneer from http://www.marwoodveneer.com/
wood is heavy, so shipping is a bitch, but they sell 7 ply kits for 10 boards for $170 plus shipping. Shipping for me at my location was $80. There is not a decent source of hard rock maple veneer cut to the appropriate size anywhere near me, so i have to order it.
They’re good people and they will work with you to put together larger kits for higher ply count decks if you want. They let me order enough for 11 ply decks when i was pushing the limits of my press mold. They even hooked me up with the guy who machined my wooden mold that i use in my press.
i highly recommend getting a rockit ruler from roarockit though. ( http://www.roarockit.com/skateboard-building/rockitruler/#.VypKvaODGko ) Yeah they’re expensive, and don’t buy their veneer, its over priced for bulk if you’re planning on pressing pretty often like i do. But that ruler will save you a load of hassle when doing truck placement and drawing your centerlines. ITs a full 4 feet long, so its not a lamo yard stick for trick decks. It will do longboards. My decks are 40" long. I have two of these rulers because one was slightly bent in the mail and they sent me a second one no questions asked, so customer service is good there.