I'm building a body for a bass. I've got 4 pieces of wood that I need to fit together and glue. The body will consist of wavy ash for the main bulk of the body, and a 5/16" curly walnut topwood. The 4 boards will be cut to these dimentions then shaped. 20.5" Length 6.5" Width ~1" Thick for the ash 5/16" thick for the walnut. I'm assuming the easiest way to start this would be to fit and glue the boards before I start shaping them. What is the best glue to hold the boards together? Is there a better or easier way to fit together the body woods? Any feedback would be much appreciated. Thanks. Here is the Walnut I will be using. The body will be a bolt on neck if that makes any difference. Also, what type of routing for the control cavity would be recommended, front or back?