I've e-mailed in a few orders for carved top and/or hollow bodies with solid finishes, and they simply skip the thinner laminate. A couple of the bodies (carved Tele for sure; I believe the carved Velocity as well) can even be done from solid blanks with no need for a laminate at all. I'm really not sure why the online ordering form & builder only offer double laminates with binding. You'd think Warmoth would rather push the single-laminate tops and solid finishes; less work for them and, I would think, therefore more profitable or at least more consistent and quicker profit.
But anyway, yes, e-mail or phone them and they'll probably be able to sort out what you want.