I paid $2300 for my set plus center caps, locks and lug nuts. Having said that, http://www.rs-watanabe.co.jp/index2.htm has your size listed for 82,000Yen ($846 EACH) so I dont feel so bad, but it's still alot of coin to get the real deal if it matters to you and fits in your budget.
http://datsunspirit.com
http://takumiproject.com
http://wheelchoice.com
Good Luck