>At this point, I'm just trying to find out more about this, before I make a decision of whether to go any further with this prospective client. Any ideas, recommendations, or advice would be much appreciated.

Is it possible that you could back up a bit and go to these websites to find out how they are updated? Ie, if they are fed from some service, you may be able to subscribe to the service.

To me, this sounds like a maintenance nightmare - you are going to have to write 75 separate parsing routines to parse the html to find the information you want in the page. And if any of the sites change, your application will either crash - or worse - not find information that is really there.