Well, at least you have a good idea it's Burley. My idea would be to try a few different Burley flavors like Hangsen, Inawera, and Flavourart and see if any of them remind you of the flavor in this particular juice.
For the Oak, there is a flavor called Oakwood from Flavourart that might be what you're looking for - but beware start at a minuscule percentage like 0.25% and up by the same increment until it's just the accent you are looking for.
The maple could be a little tougher. Most of the maple flavors I've run across are very artificial and not very appealing. I've tried many of them in my quest for a waffle recipe. My favorite so far is Flavourart Maple Syrup at 3% with 0.5% FA Caramel and 0.5% of TFA Brown Sugar. Then add 0.75% of Jamaican Rum.
I think this does sound pretty good though! Experiment with it and post your results in the Favorite tobacco flavoring thread. We'd like to know.