That web site is for vehicles for sale in Japan . You certainly wouldn't want to buy one from them . The cost of importing and retrofitting all needed safety and emission requirements ( for certification ) would make the cost prohibitive ! I doubt you could get a Subaru Impreza WRX STI for the amount you say you have in your budget but I could be wrong ? You could try Ebay or
www.dealsonwheels.com and see what's available . I'm sure if you Google "WRX STI Forums " that many will come up . They usually have classified sections , on these forums , and you might find something there ? Good luck !