From there I would set a price for the class and start doing pre-registration, do a limited 10 seat first class and have people sign up if interested. An instructor you can bring on board for a contract price for the duration of the bootcamp.
I have seen this work out successful many times in the recent 6 months. Also if your looking for something that is more for the community and less for the profit, take a look at http://www.meetup.com/codecrewny/. These guys do meetups to go through the JS in 6-8 weeks curriculum (http://javascriptissexy.com/how-to-learn-javascript-properly)
Since Rails is not prevalent, it's a great time to seize the opportunity of building that following.
And I'm thousands of miles away in the UK.
There are people out there who can help. Get in touch with them. Don't try to do it all yourself. Many, many people will volunteer time.
[1] http://boldmove.co, http://www.volotechnologies.com, http://atomicinteractive.com, http://www.designchemistry.com, http://www.bitstormweb.com
[2] http://www.meetup.com/dayton-web-developers/
[3] http://www.meetup.com/Dayton-Dynamic-Languages-User-Group/