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I have made redirects for all my products on my old site at:

http://webshop.teamout.dk

To my new shop at:

http://www.climbtown.dk

What to do with the indexed pages of my old site? I would like the earned index status to refer to my new domain.
Using the site:webshop.teamout.dk returns 255 indexed pages:

https://www.google.dk/search?client=safari&rls=en&q=site:webshop.teamout.dk&ie=UTF-8&oe=UTF-8&gws_rd=cr&ei=XVX8VJvWOYfvOY6ggbgH

In Google Webmaster Tools I can't change the address, because of the domain being a subdomain. Any thoughts about getting my old domain indexed pages removed from Google?

I am nor able to have the same URL structure.

Should I make the redirects in .htaccess?

I have an old Magento shop placed on a subdomain: http://webshop.teamout.dk/

Now I have created a new shop in another store system called ShopOrama on a new rootdomain:

What is the best way to get all my already indexed sites from google to redirect to my new site with the new META title + description?

I have tried the Magento > Catalog > URL Rewrite, but it contains over 500 redirects already and making custom redirects for all my sites will take a lot of time.

Because of the old site being a subdomain I can't change address in GWT.

I'm looking forward to your solutions