If it were me I would likely go for a newer version that CCM 4.3 due to the fact that this will be a fairly long study period and the lab will probably be testing 6.x by then. That being said "study is study" and the knowledge that you gained from studying CCM 4.x versions would never be wasted as the overall concepts will remain constant :)
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...