Simply site front page two buttons lakes for sale then sell your lake
one goes to the lakes for sale on a databse searchable by area but displays the latest as soon as you are on the page. The next sell your lake goes to a wizard screen. Add your property asks you questions like discription add photos(thunbnails) price contact info
business turnover etc. Then they pay via paypal or cheque the property is added approved by admin which is then posted on the lake s for sale page.