There will be no reference available, all line makers use different formulas. You best bet would be to go to each line makers website to get the info you need, unfortunatly there is no standard as to the length of belly/head, etc. The only standard that exists is the weight of the first 30' of the line, but there is a range they should fall between, and thier weights even vary slightly between line makers and even between line tapers.
The man who coined the phrase "Money can't buy happiness", never bought himself a good fly rod!