[Dueller]

There are a few out there:

http://www.autotrader.com/fyc/searchresults.jsp?num_records=25&search_lang=&page_location=findacar%3A%3Aispsearchform&search_type=both&distance=0&address=39157&marketZipError=false&style_flag=1&make=POR&model=911&make2=&start_year=1987&end_year=1989&min_price=&max_price=&transmission=&engine=&drive=&doors=&fuel=&max_mileage=&color=&keywords_display=&sort_type=priceASC&body_code=0&certified=&advanced=y&default_sort=priceASC&awsp=false&keywordsrep=&keywordsfyc=&systime=

Prices are all over the place....