Go with a 225/50R16 instead it will better match your ideal wheel and tire size. Here's a link to a site that goes over the best options. A 48mm offset should be fine...it's a bit low but within exceptable range, there's a great sticky by North Ursalia about offsets at the top of the tire and wheel forum. Check it out.
http://wac.addr.com/auto/obs/wheels.html