hello, I have seen the reference site, but honestly I don't have any ready made script for the same, because the system is really big and has lots of complex marketing and stock calculation. It's very hard to find any ready made script for the exact one. Now, If you find any then it's fine, otherwise I will request you to contact me, I will build this from first. I can see you are from Malaysia, I have done website's for few reputed company in Malaysia, I also have my partner there. This project is a big one, if you want you may contact my partner there as well directly. Thanks