TomD
Two other options are are to get a log and split them out or chainsaw or bandsaw them out. It will take 6 months to a year to dry the wood. I got a piece of maple that when quartered yielded 4 pieces about 4x4. It took a little over a year before I got them dry enough to make planes out of. That was maple. The dimensions you want would be less time. However, it is possible to make legs out of wet wood. So long as the aprons are dry, the legs will shrink around the tenons. I would try that before I used lamination, which I just would not do. Also there is semi wet, can you really not wait a few months? Some logs are quite dry to start with in the form they were found, and they dry quickly at first. You rough them oversize and let them dry a while, and you will be working green, but they will not be soaking, it really won't be a big problem.

http://www.pbs.org/woodwrightsshop/video/3100/3107.html

The other option is to get some wood in anything from a about 2 quarters up in thickness, and miter the edges so that you can glue it on two sides over a core piece. With clean joinery this will look like a solid pieces since the grain on the outside edges is complete. That would work with elegant tapered legs, but if there is a lot of beef on the sides, or it is turned, it won't work. Even multiply lamination of thinner stock will look better.