....which is precisely why I said for him to go air suspension.
seriously, if you're dropping that low, you're doing it for looks. do it right and run air/hydro so you can lift it for shitty streets and dump it for hard parking and shows.
4"+ drop is absolutely idiotic on coilovers. you're just making life hard on yourself. If you don't want to spend the money to do it right, sell the 1, buy something more air-friendly that leaves more room in your budget, and do it right.