Check used guns on budsgunshop.com
Actually, here is the link:
Link to P228
My experience with Buds has been very, very good. Most of the guns I have purchased (15-20 over the years) were in like new condition and some I am pretty sure were unfired. This listing doesn't have a picture but the description says 90-100% / excellent condition which to me says it is very close to new. If you haven't dealt with Buds before, read their terms on refusing the gun if you aren't happy with it. Also, I just noticed this is a "Team Buds" item so it is reserved for people who have paid $25/$30 per year for special access and special handling. It may be worth it if you really want a P228.
And then there is this listing on gunbroker.com:
Link to German P228
For what it's worth, I landed a like new P228 about 3 years ago in a LGS for $515. That was one of my better buys!
Good luck on your search.