Theme migration from top level WP set up to subfolder (url/wp/wp-content)

I have designed and tested a new theme on a different server than the one hosting my site. My site is set up in a subfolder (ie url/wp/wp-content/themes/etc…) but the testing server was set up with WP at the top level (ie url/wp-content/themes/etc…).

I realize I should never have done this, but now I need to move the new theme onto the main hosting server and am not sure where to begin. It does not preview correctly as is.

Any ideas?

Thanks