maxferran,
Congratulation and welcome to the forum ! I used to have a bunch of friends in Mandeville ( I went to the University of Alabama - been to Mardi Gras 5 times )
I was going to suggest
www.craigslist.org but I did a search and all I found is a guy willing to trade a 1988 924S for a Tri Axle Dump truck :
http://neworleans.craigslist.org/search/sss?query=porsche
I know you can buy a new one from Park Place Porsche in Dallas for $3k :
http://porsche.parkplacestores.com/boxsterhardtop.html
Hope this helps...
Nick