GHS Boomers in Heavy will do the job as a stock set of strings. These are nickel plated steel, and midway between SS and NIK for tone. Price is very reasonable.
I used these strings for a client's bass (
www.aroarah.com) which is permanently drop tuned to C#. I set standard relief and action height, and Chelsea is quite happy with the results. She plays hell out of that bass with no buzz. She is normally a DR LowRider Nickel fan, and she's OK with the Boomers.