Any suggestions on how to make a ratebeer.com clone?

I am trying to imitate the rating capability of ratebeer.com and I am wondering how this might be acheived and if there are any suitable voting modules already existing.  I would like to create a content (beer_rating) that has the following rateable elements:

• Aroma: out of 12
• Appearance: out of 3
• Flavour: out of 20
• Mouthfeel: out of 5
• Overall: out of 10

This would give an overall score out of 50. This is the BJCP system of scoring beers. Also an average score for others who have rated this. I was thinking of having something like rateable comments so that there would only be one node per beer. As I understand it I won't be able to do this with fivestar due to the 10 star limit. Does anyone have any suggestions on how this might be acheived?

If it comes to writing a custom module based on the VotingAPI then are there any recommended tutorials for a first time module developer (and any tutorials specific to the VotingAPI)? All suggestions welcome!

Cheers!