I’m still confused here because ‘9V track without metal rails’ doesn’t make any sense. What’s the BL number of the part you ordered? If it is a prototype 9V track with no metal rails in it, you’ll have no choice but to put metal rails in it. If it’s an all-plastic RC track, the rails won’t come off any more than the studs come off of a 2×4 brick. In that case, you’ll have two options – run an RC train on it, most likely Power Functions, or use Josh’s suggestion of the copper sheeting to electrify it.