Greetings,
I have read initial high level requirements & visited the reference/example websites, so if you want to clone any of those websites, then I am afraid that your budget of US $1,500 is very low, as there are lot of features. However, if you have your own list of features, then I can surely come up with our estimate.
At the moment, our current bid is just a placeholder to submit the proposal & start our conversation thru' Freelancer message board but once I hear from you, then I can give you our firm estimate.
Let me know, if you want to review some of our past work as I don't want to bombard you with lot of links at first place.
Look forward to hearing from you and talking to you further thru' Freelancer message board.
Regards,
YK
LEADconcept