From the ACT its a straight line to Cooma and start from there, the actual route is less than 500 k so its you're call how the kays are made up. I would avoid the mountains at night but thats up to you of course, I nearly hit a deer after dark. The pub at Cabramurra has odd opening hrs so it might be worth a call before you go since you need a docket there. Other than that the Power stations are not difficult to access and, it is of course, a blast of a ride. I did them M1 ,M2 T1, T2, T3.