Hi Karen ~
There has been quite a bit of help given already for you to begin to plan your trip, including doubled information to reinforce where to look. Are you aware that all blue printing on TA, including in post #1 can be clicked open to new pages of information, especially for research purposes? In post #1, the first two blue print links will click open to two different sets of Trip Reports that past visitors have left. The third blue link is the BC tourism website and finally as I and krp have posted is a very helpful online distance calculator.
Hello BC: www.hellobc.com
Just a heads up about the forums. They are not really the place where local posters organize a complete itinerary for the visitor. I'm afraid I don't know any volunteer on the forums who has that kind of time or interest. But once you have done a bit of research, discovered a bit of what you want to see and do, laid out the most provisional of itineraries, then we can go to work with what you give us. All visitors have received the advice they have asked for on these forums after presenting their tentative itineraries and you are no exception.
What else can you do? You can read the questions being asked and replies being given on the British Columbia Forum by those folks planning to visit here this summer. And you can look on the Canadian Rockies Forum as well. Open and read any pertinent topic titles down the page, and then click through to p. 2, 3, 4, and even 5 if necessary. I am one, for example, who likes to post various google map routes (blue print links) in response to specific questions by visitors. Maybe some of those will be of help to you so look for them. Also look at the Things to Do in the left sidebar and make good use of the Hello BC website linked (in blue print) in post 1. Consider getting a Lonely Planet Travel Guide from the library or bookstore to help you sort out what's what and where what is.
BC Forum topics: tripadvisor.com/ShowForum-g154922-i80-Britis…
Canadian Rockies Forum topics: tripadvisor.com/ShowForum-g659487-i11598-Can…
The distance from Vancouver to Banff is 850 km. You mention 13 days. Is that 13 nights as well or 12 or 14? In general, I would suggest spending 1 night in Vancouver, then rent your car, heading for 2 nights (say Kelowna and Revelstoke) on the way to the Rockies, 6 nights split between Banff and Jasper, drive back down the Icefields Parkway for a second time and spend 2 nights on the way back to Vancouver, 2 nights in Vancouver. That's 13 nights. Weight your time in the Rockies, they should be your focus.
I don't think you will have too much trouble driving on our side of the road. Aussies seem to do fine on our highways but say they have to pay attention a bit more and remember to get in on the correct side of the car and shift sides for the control sticks for the turn signals and windshield wipers.
And please tell us your interests. Culture, history, hiking, kayaking, museums, architecture, photography, sightseeing, First Nations. I look forward to helping you fine tune and perfect your plans, but I have no idea what would please you and really you shouldn't leave that in the hands of a bunch of strangers.
I would also suggest you use the same user name. You have 2 accounts and it will be better to keep all your information together by using the same user name. Either Karen v181 or Karen v849.