You are correct on the DSST / EC units and their respective placements. I will advise you on the following and others have found it to be extremely helpful. Excelsior's "study packet" for ethics is so discombobulated and wordy that it's practically another language. I spent in excess of $225 for the 5 books and after feeble attempts to understand (no exaggeration) "If one were to deduce the rationale of the topical arguments as well as by proclamation pre-suppose substantiated as well as quantifiable theories then one must deduce between the two in an attempt to prose various theories and ideas."
Needless to say, you won't understand a word. Spend 14 bucks and buy the dummies guide to ethics. Supplement that with an occasional internet search and you should be fine. Good luck!

__________________
The best things in life aren't things.
~Brandon