Just take it slow and easy as 'enthusiasm' & hurriedness is likely the number-one reason why cuttings fail to thrive, especially when wanting to do something 'fancy'. If going the ROR route, plan on leaving it alone for a year (or two) after wrapping the roots
Alex is correct, as usual
. I would like to add that you will also need at least a year (or more) before
you attempt the root over rock planting. This allows the trunk to acquire some girth and the roots to attain some initial length. After all it is hard to do a ROR if you have little root to work with.
Alex also wrote something in another thread that applies here as well:
I see way too much 'thinking'/dreaming here and less focus on basics-of-care. It takes years of basic to get to where 'fancy' comes into play, and if basics were ignored, there will be no 'fancy' time, right?
Take this to heart. I have some ficus that were established (nursery center) plants when I bought them and after three or four years they are only now beginning to look like something more than cuttings.