Hi Cindy:
Redbuds - grown properly by the propagator or nurseryman - are not difficult to transplant in sizes up to 3 - 4" caliper if field grown and moved B&B or with a tree spade. I don't think I've seen very large plants in containers, but a reputable nursery in central Indiana lists them up to 1.5" caliper in 15G pots ($189.00, as is, where is).
I agree with pretty much all the comments heretofore regarding lighting, siting, and elevating the canopy as early after establishment as you are willing - since smaller pruning cuts close their wounds more quickly.
If I were home, I could send you some mature FP pictures to show habit, but it is not different from the average Redbud habit.