I would perform your bend right now before the tree starts moving resources in preparation of their spring elongation. You do this now to minimize bleeding or sap leakage, giving the tree time to compartmentalize the wound at the bend site. You should them fertilize aggressively the entire year, and most importantly, DO NOT CUT/PRUNE/REMOVE any growth above the bend this year. This unrestricted growth allows the tree to move all the resources through the remaining vascular tissue in the trunk or branch. The result is expansion of the tissue on the opposite side of the bend which is what is going to hold the bend you created.
Reportedly, the more radical the bend the faster it sets.
I would then the following year, do this: return to normal fertilizer schedule, make use of a sacrifice branch above the bend, resume refining the remaining branches. Do not touch your sacrifice branch as all this will be adding the vascular growth that will hold your bend.
You could then at this point probably perform a fall repotting after all the growth has completely hardened off. Obviously, depending on how you set up your bend you will probably have to be very gentle in regards to root work.
I would probably watch Ryan’s videos on how to handle issues with percolation and perform something similar to avoid repotting. You could instead add tape around your container, remove compacted surface soil and replace with fresh soil while using chops sticks to perforate through the compacted and otherwise untouched lower portion of the spoil column. This will allow water to pass into and through the container. A combination of all could work very well, in addition, to appropriate watering practices.
I believe that avoiding repotting would greatly benefit the tree in terms of gathering strength, healing the wound/setting the bend at a much more rapid pace. My pines, small/medium/large do not get repotted any more frequently than 5-6 years regardless of where they are in their stage of development.
If you get a lot of growth above your bend it may completely set in 3-4 years since the trunk is about 2 inches. Give your work the best chance for success you will not regret it!