This page will cover the configurations of all Vulcan B2s and subvariants thereof. B1 configurations are a little harder to research, so I will add these at a later date. This should contain all the information you need to get started producing an as accurate as possible Vulcan B2 from any of the currently available kits.

On this link is a spreadsheet containing all of the information in an easily understandable format. 

https://drive.google.com/file/d/1ljleemPGEVyH360F-DqwZqu5iB3LrcqL/view?usp=sharing