Can you find a manufacturer with a technical solution before the patent is granted?

An invention patent can only be temporarily protected during the period from disclosure to authorization if the application is made public in advance. You can't apply for temporary protection.

As for the early conversion, of course, it is possible, and the actual commercial operation can only be carried out after the application.

However, before the patent is granted, your product cannot be effectively protected by law, and the patent may be rejected for various reasons during the review process. At this time, if it is rejected for some reason, you will give up, because you have made the technology public, and you can't apply for this patent in the future. It will become a well-known technology and everyone can use it in the future.

The specific operation is up to you to consider.