The site concept is similar to http://www.swapz.co.uk/ .
it’s basically marketplace where people can swap product and also apartment/flat/condominium.
for the application we would need heavy localization for Thai market and complete new design.
for localization if you already have system and I can update xml file then no issues.
also for front end and backend design can be given from my side.
if any one has already made site like this or can customize current system which you have, please let me know what would be the cost