most kits come with all thats needed just plugin and play . my kit was £30 and has lasted nearly 3 years now. for convinience I would recomend one of the people on here who do hid's. I think you are looking at £60+ for a quality reliable (with good returns policy and no quibble warranty) I would have thought any single H4-3 35w with slim ballast would be ok for you (car kits generally come with 2 of everything for a car obviously). hope this reply helps