Forums are good for getting answers to specific questions or help with specific problems. But, you are starting a project...from scratch. This is like saying, "I'm building a house. Just bought a plot of land. What's next?"
If you don't have much experience with bikes, converting one can be a very frustrating and expensive experience. The key to most successful conversions is knowledge and experience.
My advice:
- Look for a local co-op for help
- Look to a local friend for help
- Look for a local bike shop for help
- Consider buying a new bike ($300) and be riding by the weekend and save the 10-speed for longer rides