You will have to call Sig Sauer to find out.
100-600 or more depending on specifics
http://en.wikipedia.org/wiki/SIG_P229#P229
100-440 or so
The SIG P229 with serial number AE 15032 was manufactured in 1996. The serial number range and associated dates can often be cross-referenced with production records from SIG Sauer, which indicate that the P229 series was produced in the mid-1990s during that time frame. For precise information, you may consult SIG Sauer's customer service or reference a detailed manufacturing date chart.
Yes. The barrel has to be replaced with the .357 sig barrel, but the magazines are the same.
~$189 to ~$229
You will need to contact SIG to find out.
It depends partly on the person shooting it. I've seen people shoot accurately at 100 yards with those types of guns, although it isn't very common.
The factors of 229 are 1 and 229. 229 is a prime number.
Percent increase = (281 - 229) / 229 = 52 / 229 = 0.227 = 22.7%
50.00 dollars
CopsPlus.com has them. You can get them at most good gun shops. You can also have them custom made. I got myself a Blade-Tech holster from www.lapolicegear.com. Just be sure you know what type of holster (particularly regarding its positioning) you're looking for.