I keep a very close contact with camellia nurseries in China. They transplant very large Camellia oleifera trees from tea oil production hilly area to their nursery for grafting. Even yours and their's are for different purpose. We can learned a few tips of their practice in transplanting 8 to 10 feet camellia tree:

1. Digging during dormant time late Feb or early March.
2. With some root ball.
3. Trimming the exposed root to "clean cut".
4. Spray fungicide solution.
5. under shady area or under 65% shade cloth.
6. nice moist not prolonged wet soil.
7. You "might" trim off about 50% of the branches and leaves in late Fall ( But I am not very positive about that). It is just my common practice to reduce evaporation later. You need to consult with others. Because their plants in their nursery did not have any small branch or any leaf.

You should have better chance to be successful because your plant is much smaller. They will erect shade cloth with thick bamboo shortly. They also will dig a long trench at either side of the plants to keep the soil not too wet.

Here is a link that might be useful: {{gwi:511882}}