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I'm just entering the process of switching web developer companies, and I was wondering what process would be best for redirecting our old product (new and used cars) pages.  Our current design leaves much to be desired seo wise (http://www.resslermotors.com/index.asp?cmd=detail&vin=1FTSX30F3XEC01446&stocknumber=123911&sg=ocor5h42d2yhkla&Make=Ford&parCertifiedFlag=&Model=&parVehTypeID=&p=6&page=1), and redirecting all of them seems like it would be pretty complicated. In addition to that, we currently have 35,000 pages.  Is there a practical way to do redirects with this many pages?

What would you do if a competitor had their main domain, and then another domain targeting your local area with the same exact content? That's currently happening to me, and I'm not sure what I should do about it, if anything: http://www.bozemanchevrolet.com and http://www.montanachevy.com

I'm the Marketing Director at a car dealership that is trying to break into online shopping.  We have had an internet sales team for about 4 years handling online leads.  These leads were generated by forms present on our website.  However, I'm trying to step up our production of leads online (we are currently at 1-2%). Here's my problem: The current method that car dealership website developers use, at least the 4 I've utilized, makes all the search pages have duplicate content, and many of the product/car pages have duplicate content (Title, etc.).  Is there a way to stop all of these search pages from coming up as duplicate content? My other question is: Our inventory completely refreshes about every two months, what would be the best option for our product web pages? Should I no-index them? 301 redirect to a similar vehicle? Any better options? Thanks