we are making webcam sites for more than 8 years and experienced in this area
depending on the package you can get either only script with limited number of model allowed (Starter package for $1495) or Complete website with graphics design including installation to your server, integration with any payment gateway, 1 year of technical support (Enterprise package for $4995)
More details about packages could be found here:
http://www.online-webcam.net/pricing.html
Feel free to contact me if anything is not clear in this table.
examples of live webcam sites based on our system can be sent upon request