This would probably best be solved with a custom post type for the Exhibit.
That will give you a new section in the admin-area with posts/pages for each exhibitor.
That way you can for example use:
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Post thumbnail as “exhibitor_logo_img”
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The post title as “exhibitor_title”
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The content area as “exhibitor_bio”
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And if you need the “exhibitor_id” separate from the content, that could be done with a custom field named “exhibitor_id”.
Have a look in the WordPress codex for info on how to setup a custom post type.
Or if you prefer a more graphical way of doing it, you can also do the same with a plugin. There are several plugins that handles the setup. Such as “Custom Post Type UI“.