Building an acoustic guitar is much more involved that could be done in an instrutcable and do it any justice.Perhaps this link would supply all of the information you are looking for.If you really want to build your own, I believe that there are several nice kits available. You might want to start looking at Stewmac.com.
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Agreed 100% - perhaps ask in the burning questions area and get some advice from around there...
There are plans / instructions here:<br /><a href="http://www.vintageprojects.com/woodshop/guitar-plans.html">www.vintageprojects.com/woodshop/guitar-plans.html</a><br />
check out <a href="http://www.grizzly.com">www.grizzly.com</a> , They not only sell various kits for building instruments but th' tools fer th' job as well !
Here's a link to a kit that might be worth checking out. They also have a classical neck version in case you're bent that way.