Greetings,
I have visited the website to check how the designer tool work, means on the fly, you can change the color of the iPhone etc. this is very much doable, as there is lot of JavaScripting, jQuery is involved, normally these tools were built in Flash in old time but now a days JavaScripting, HTML 5 is used, because Flash is obsolete technology.
We can definitely develop similar website, in fact we are currently working on a website, where we have to do designing on the fly, so our team is familiar with this kind of project but your budget is lower than our ballpark estimate.
Our current bid is just a ballpark estimate but once you respond us, we can then negotiate it & finalize, as we are flexible in prices.
Please check out our Freelancer profile https://www.freelancer.com/u/leadconcept.html, as we have delivered many successfully projects lately and let me know, if you want to see some of our recently developed projects.
Look forward to hearing from you.
Regards,
YK
LEADconcept