Bandsaw is the logical first step, but in order to get to a precise thickness, you'll need to thickness sand the laminations quite accurately.
If you have a drum sander, you're alot closer, then you just need a decent sled to run the laminations on, and a tapered lam to use as a template to make more tapered laminations. (place the template lamination onto the sled, then place the workpiece onto the tapererd lamination).
If you dont have a drum sander, you can make a lamination grinder for not too much money if you're handy, but don't expect professional quality lams your first time out. For the price of laminations, I dont know if its worth it.
I built a lamination grinder and make my own lams for wood bows, but they're not perfect. Since I'm tillering the thickness anyway, it doesn't matter too much to me if they're perfect, but for a glass bow you don't have the same luxury.