Limb lengthening suggestion

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If you are reading this post, thank you for your time.

I am a 23year male from Hong Kong who is around 170-172 depend on the day.
I would like to increase my height by 6.5 cm.
My goal is around 177/178cm, which is decent enough in Hong Kong

Based on my research , I think that lon tibia is a good method, or are there any method I should consider
Also, I would like to stay in Asia for my surgery, thinking of Dr Chung in Korea right now. Or are there any good option?
My goal is to complete the surgery in 3-4 months and spend around 40-50k(max) .
Thanks a lot

Edit Post

I want to walk asap so that I can get back to workplace . Maybe I have a misconception that as much internal it is , it is more safe. If I miss understood , feel free to point it out. Thanks