I like this idea! Having a body of knowledge that can be applied to these situations will be a great resource.

IMHO: Steer away from the term "best practice". There are multiple "good" practices that may be a better choice given the business situation. Some companies will blindly apply the "best practice" and ignore other practices that may be a better fit for their situation. Having multiple well thought out papracticesnd the reasons you would want to choose one approach over another would be a huge benefit.