It is not impossible, even if it looks like a very complicated surgery, it does not make the prices necessarily impossible, many surgeons when they use LON for non aesthetic surgeries usually lower their prices by more than 50%. Now, in Russia I know you can get pure externals for 6-7k USD, but I don't know which surgeons work with LON there, Russians are experts in working only with externals. Now, in Vietnam there are a considerable amount of surgeons performing LON for several years for aesthetic cases, many even have quite low prices, especially those outside the capital, I have seen cases of people getting LON for 5-8k USD, but usually these doctors only operate on local people, to foreigners they usually increase the price. You could look into dr. Doan, he is a surgeon based in Hanoi, he is one of the most reputable in Vietnam so to speak, he has a lot of experience operating LON in TIBIAS, I was talking to him and he offers the surgery for 10k USD, and he has several packages including accommodation, physiotherapy and care, but depending on the package the price increases, I was talking to him and some of his patients and it seems that everything is "ok" for the moment, but I am still looking for more detailed information about the guy and more experiences, because although he has had good results, I don't like that he makes his patients lengthen more than they should, he recommends to lengthen maximum 8 cm, (which is already a lot) but nevertheless some of his patients usually go up to 10 cm, which is crazy for tibias.