phpnuke to vbulletin migration

Anybody have an idea of what it would cost to migrate a site from phpnuke to vbulletin? Any recommendations on who can do this? The site is Southeast Louisiana Aquarium Society.

My site has basic features like a forum, calendar, gallery, and a map; all of which I would like to have at least some version of on the new site.

However, I want additional functionality, like being able to:

- have a mobile app

- Make the bulletin board software allow for picture attachments directly to the SELAS site

- Make the bulletin board software allow for the embedding of videos

- Install a reputation or thanks feature to the bulletin board software

- Install a CAPTCHA (might come with the software)

Thanks