Damn it, nice answer, you beat me to the punch

I would say that you want to keep it n the same domain. If you use an m. version of the site, you can keep it on the same sub-domain.

A second option would be to use the same page structure and use 301 redirects so you can move across the link juice from all the back-links.

The obvious first choice is to redesign and slowly integrate however this is not an option here.

I would say that you want to keep it n the same domain. If you use an m. version of the site, you can keep it on the same sub-domain.

A second option would be to use the same page structure and use 301 redirects so you can move across the link juice from all the back-links.

The obvious first choice is to redesign and slowly integrate however this is not an option here.

Damn it, nice answer, you beat me to the punch