I dont know what the cost of the kit will be check with Zero. Baja Designs used my bike to make the kit. Once you put the light kit on it has to inspected by a certified light specialist ( this is in CA). They will have a statement of facts that certifies the lights, horn, turn signals all work properly. The mechanic should also give you a CHP 888 form that you have to sign. Take the statement of facts, the CHP 888 and your Zero to the DMV. They will have to verify the Vin. In order to register a new bike in CA it must have a Federal label. That is unless the bike is under 50 cc's. The ZERO is 0 cc's. The Vin conforms the same as a green sticker bike so an emissions label is not needed. For engine type the DMV needs to use E (for Electric just like an electric car). Some DMV employees dont know what to do with electric motorcycles. Let them know that several of these bikes have been registered and if they say it cant be done talk to a manager.