You are right, but I would approach it in thi fashion
Reource for RC
4) OG Verbal
5) 3000 RC document
I would rather work the above RC's and make note of new words, rather than learning words compiled by someone.
1) You would practice RC at the same time
2) Read magazines like Economist
and create our own word list
3) You would try to guess the meaning of the word based on context of the passage.