My advice is to re-read the bowyers bibles i - iv - all the info you need is in them I promise you!
The simplest way I can think of would go something like this.
1 - make a form
2 - start with 3 lams. Bamboo will be great for the backing. Maple is the choice core wood and osage would make a great belly.
3 - Lam thickness to start with would be somewhere around 1/8th thick backing, tapered core of maple from around 3/16ths to 1/16th and the belly around 1/2 tapered to 1/4. Of course you would need to splice the tapered lams.
4 - you may need to help the belly conform to the form shape with judicious use of dry heat.
5 - Glue up.
6 - Glue on riser
7 - Tiller
Sounds simple eh!?
Have fun and good luck