I already included Club for Growth (I abbreviated it CFG).
I use Michael Barone’s The Almanac of American Politics, 2014 edition, not only to select the 6 ideological vote raters, but to obtain said ratings for 2011 and 2012; of course, one can obtain the ratings by visiting six different websites, which might be a good idea a few months from now to see whether ratings for 2013 are up.
As for adding other raters, one has to be careful how it is done, since if, for example, you included two economic-conservative groups in addition to the CFG, the overall rating would be tilted in favor of economic conservatives and would not give sufficient importance to social issues.
I certainly don’t have the time to compute amalgamated conservative ratings for all 435 House members and 100 Senators, but if someone computes them (a spreadsheet would be the easiest way to do so), we can create an FR thread for the ratings.
I was under the impression, not sure why, that you had done an amalgamation. Well the process alone is a significant step in the right direction. Not sure why I didn’t equate CFG with you know who, but I’m offering no excuses.
Your process needs a catchy name.