There are only a handful of them available in the country at that price, but here is the link.
I hope you know that they are not fast, they eat oil, the rotary engine is not reliable and they are expensive to repair and maintain. If you are still interested here are the ones that fit your criteria...
http://www.autotrader.com/fyc/searchresults.jsp?num_records=25&search_lang=en&page_location=findacar%3A%3Aispsearchform&search_type=used&distance=0&address=75028&marketZipError=false&style_flag=1&make=MAZDA&model=RX8&make2=&start_year=1981&end_year=2010&min_price=&max_price=9000&seller_type=b&transmission=&engine=&drive=&doors=&fuel=&max_mileage=&color=&keywordsrep=&keywordsfyc=&keywords_display=&sort_type=priceDESC&body_code=0&certified=&advanced=&highlightFirstMakeModel=&showZipError=n&default_sort=&awsp=false&systime=&rdm=1247424434730
