For a basking bulb I would skip those altogether and use a normal incandescent or halogen bulb, like you'd use for your home. The wattage you need will depend on how your temperatures settle in the cage, but it could be just a 50w for the Jackson's and a 65w for the veiled.
You can get a multipack of incandescent bulbs from a home improvement store, for example, and see which ones work best.